Home / 39,941,938.80-55,119,688.92-21,607,063.92

Finding the Fourth Proportional to 39,941,938.80, 55,119,688.92 and 21,607,063.92

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Solution

The fourth proportional to 39,941,938.80, 55,119,688.92 and 21,607,063.92 is: 29,817,647.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,941,938.80 : 55,119,688.92 = 21,607,063.92 : x
  2. Step 2: Convert to fraction form
    39,941,938.80/55,119,688.92 = 21,607,063.92/x
  3. Step 3: Cross multiply
    39,941,938.80x = 55,119,688.92 × 21,607,063.92
  4. Step 4: Simplify right side
    39,941,938.80x = 1,190,974,641,744,956
  5. Step 5: Solve for x
    x = 1,190,974,641,744,956/39,941,938.80
  6. Step 6: Final answer
    x = 29,817,647.25

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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.