Home / 715,392,003.40-1,073,088,005.10-520,388,585.80

Finding the Fourth Proportional to 715,392,003.40, 1,073,088,005.10 and 520,388,585.80

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Solution

The fourth proportional to 715,392,003.40, 1,073,088,005.10 and 520,388,585.80 is: 780,582,878.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,392,003.40 : 1,073,088,005.10 = 520,388,585.80 : x
  2. Step 2: Convert to fraction form
    715,392,003.40/1,073,088,005.10 = 520,388,585.80/x
  3. Step 3: Cross multiply
    715,392,003.40x = 1,073,088,005.10 × 520,388,585.80
  4. Step 4: Simplify right side
    715,392,003.40x = 558,422,749,412,932,224
  5. Step 5: Solve for x
    x = 558,422,749,412,932,224/715,392,003.40
  6. Step 6: Final answer
    x = 780,582,878.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.