Home / 19,920,072.30-29,880,108.45-13,755,356.70

Finding the Fourth Proportional to 19,920,072.30, 29,880,108.45 and 13,755,356.70

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Solution

The fourth proportional to 19,920,072.30, 29,880,108.45 and 13,755,356.70 is: 20,633,035.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,920,072.30 : 29,880,108.45 = 13,755,356.70 : x
  2. Step 2: Convert to fraction form
    19,920,072.30/29,880,108.45 = 13,755,356.70/x
  3. Step 3: Cross multiply
    19,920,072.30x = 29,880,108.45 × 13,755,356.70
  4. Step 4: Simplify right side
    19,920,072.30x = 411,011,549,964,434.06
  5. Step 5: Solve for x
    x = 411,011,549,964,434.06/19,920,072.30
  6. Step 6: Final answer
    x = 20,633,035.05

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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.