Home / 103,890,430.70-155,732,857.05-49,206,901.40

Finding the Fourth Proportional to 103,890,430.70, 155,732,857.05 and 49,206,901.40

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Solution

The fourth proportional to 103,890,430.70, 155,732,857.05 and 49,206,901.40 is: 73,761,666.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,890,430.70 : 155,732,857.05 = 49,206,901.40 : x
  2. Step 2: Convert to fraction form
    103,890,430.70/155,732,857.05 = 49,206,901.40/x
  3. Step 3: Cross multiply
    103,890,430.70x = 155,732,857.05 × 49,206,901.40
  4. Step 4: Simplify right side
    103,890,430.70x = 7,663,131,341,599,645
  5. Step 5: Solve for x
    x = 7,663,131,341,599,645/103,890,430.70
  6. Step 6: Final answer
    x = 73,761,666.88

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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.