Home / 1,080,381,387.54-1,490,469,771.70-723,264,215.24

Finding the Fourth Proportional to 1,080,381,387.54, 1,490,469,771.70 and 723,264,215.24

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Solution

The fourth proportional to 1,080,381,387.54, 1,490,469,771.70 and 723,264,215.24 is: 997,798,983.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,381,387.54 : 1,490,469,771.70 = 723,264,215.24 : x
  2. Step 2: Convert to fraction form
    1,080,381,387.54/1,490,469,771.70 = 723,264,215.24/x
  3. Step 3: Cross multiply
    1,080,381,387.54x = 1,490,469,771.70 × 723,264,215.24
  4. Step 4: Simplify right side
    1,080,381,387.54x = 1,078,003,449,767,542,528
  5. Step 5: Solve for x
    x = 1,078,003,449,767,542,528/1,080,381,387.54
  6. Step 6: Final answer
    x = 997,798,983.03

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Half scale
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Double scale
Find fourth proportional to 1,080,381,388.54, 1,490,469,773.08 and 723,264,216.24
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.