Home / 102,920,044.65-142,031,692.98-56,509,892.61

Finding the Fourth Proportional to 102,920,044.65, 142,031,692.98 and 56,509,892.61

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Solution

The fourth proportional to 102,920,044.65, 142,031,692.98 and 56,509,892.61 is: 77,984,767.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,920,044.65 : 142,031,692.98 = 56,509,892.61 : x
  2. Step 2: Convert to fraction form
    102,920,044.65/142,031,692.98 = 56,509,892.61/x
  3. Step 3: Cross multiply
    102,920,044.65x = 142,031,692.98 × 56,509,892.61
  4. Step 4: Simplify right side
    102,920,044.65x = 8,026,195,717,516,290
  5. Step 5: Solve for x
    x = 8,026,195,717,516,290/102,920,044.65
  6. Step 6: Final answer
    x = 77,984,767.15

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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.