Home / 56,895,754.90-78,516,389.16-30,790,275.02

Finding the Fourth Proportional to 56,895,754.90, 78,516,389.16 and 30,790,275.02

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Solution

The fourth proportional to 56,895,754.90, 78,516,389.16 and 30,790,275.02 is: 42,490,713.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,895,754.90 : 78,516,389.16 = 30,790,275.02 : x
  2. Step 2: Convert to fraction form
    56,895,754.90/78,516,389.16 = 30,790,275.02/x
  3. Step 3: Cross multiply
    56,895,754.90x = 78,516,389.16 × 30,790,275.02
  4. Step 4: Simplify right side
    56,895,754.90x = 2,417,541,215,813,746.50
  5. Step 5: Solve for x
    x = 2,417,541,215,813,746.50/56,895,754.90
  6. Step 6: Final answer
    x = 42,490,713.42

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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.