Home / 39,957,830.71-55,141,806.45-21,623,116.21

Finding the Fourth Proportional to 39,957,830.71, 55,141,806.45 and 21,623,116.21

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Solution

The fourth proportional to 39,957,830.71, 55,141,806.45 and 21,623,116.21 is: 29,839,900.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,957,830.71 : 55,141,806.45 = 21,623,116.21 : x
  2. Step 2: Convert to fraction form
    39,957,830.71/55,141,806.45 = 21,623,116.21/x
  3. Step 3: Cross multiply
    39,957,830.71x = 55,141,806.45 × 21,623,116.21
  4. Step 4: Simplify right side
    39,957,830.71x = 1,192,337,688,897,677.75
  5. Step 5: Solve for x
    x = 1,192,337,688,897,677.75/39,957,830.71
  6. Step 6: Final answer
    x = 29,839,900.41

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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.