Home / 136,897,128.53-188,927,306.25-77,337,767.59

Finding the Fourth Proportional to 136,897,128.53, 188,927,306.25 and 77,337,767.59

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Solution

The fourth proportional to 136,897,128.53, 188,927,306.25 and 77,337,767.59 is: 106,731,355.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,897,128.53 : 188,927,306.25 = 77,337,767.59 : x
  2. Step 2: Convert to fraction form
    136,897,128.53/188,927,306.25 = 77,337,767.59/x
  3. Step 3: Cross multiply
    136,897,128.53x = 188,927,306.25 × 77,337,767.59
  4. Step 4: Simplify right side
    136,897,128.53x = 14,611,216,102,221,112
  5. Step 5: Solve for x
    x = 14,611,216,102,221,112/136,897,128.53
  6. Step 6: Final answer
    x = 106,731,355.57

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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.