Home / 1,080,381,653.89-1,490,470,145.27-723,264,488.03

Finding the Fourth Proportional to 1,080,381,653.89, 1,490,470,145.27 and 723,264,488.03

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Solution

The fourth proportional to 1,080,381,653.89, 1,490,470,145.27 and 723,264,488.03 is: 997,799,363.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,381,653.89 : 1,490,470,145.27 = 723,264,488.03 : x
  2. Step 2: Convert to fraction form
    1,080,381,653.89/1,490,470,145.27 = 723,264,488.03/x
  3. Step 3: Cross multiply
    1,080,381,653.89x = 1,490,470,145.27 × 723,264,488.03
  4. Step 4: Simplify right side
    1,080,381,653.89x = 1,078,004,126,535,253,888
  5. Step 5: Solve for x
    x = 1,078,004,126,535,253,888/1,080,381,653.89
  6. Step 6: Final answer
    x = 997,799,363.46

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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.