Home / 31,129,712.70-46,694,569.05-13,213,808.70

Finding the Fourth Proportional to 31,129,712.70, 46,694,569.05 and 13,213,808.70

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Solution

The fourth proportional to 31,129,712.70, 46,694,569.05 and 13,213,808.70 is: 19,820,713.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,129,712.70 : 46,694,569.05 = 13,213,808.70 : x
  2. Step 2: Convert to fraction form
    31,129,712.70/46,694,569.05 = 13,213,808.70/x
  3. Step 3: Cross multiply
    31,129,712.70x = 46,694,569.05 × 13,213,808.70
  4. Step 4: Simplify right side
    31,129,712.70x = 617,013,102,755,640.62
  5. Step 5: Solve for x
    x = 617,013,102,755,640.62/31,129,712.70
  6. Step 6: Final answer
    x = 19,820,713.05

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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.