Home / 56,895,750.18-78,516,382.65-30,790,270.31

Finding the Fourth Proportional to 56,895,750.18, 78,516,382.65 and 30,790,270.31

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Solution

The fourth proportional to 56,895,750.18, 78,516,382.65 and 30,790,270.31 is: 42,490,706.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,895,750.18 : 78,516,382.65 = 30,790,270.31 : x
  2. Step 2: Convert to fraction form
    56,895,750.18/78,516,382.65 = 30,790,270.31/x
  3. Step 3: Cross multiply
    56,895,750.18x = 78,516,382.65 × 30,790,270.31
  4. Step 4: Simplify right side
    56,895,750.18x = 2,417,540,645,164,312.50
  5. Step 5: Solve for x
    x = 2,417,540,645,164,312.50/56,895,750.18
  6. Step 6: Final answer
    x = 42,490,706.91

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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.