Home / 125,128,314.40-187,692,471.60-73,984,007.20

Finding the Fourth Proportional to 125,128,314.40, 187,692,471.60 and 73,984,007.20

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Solution

The fourth proportional to 125,128,314.40, 187,692,471.60 and 73,984,007.20 is: 110,976,010.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,128,314.40 : 187,692,471.60 = 73,984,007.20 : x
  2. Step 2: Convert to fraction form
    125,128,314.40/187,692,471.60 = 73,984,007.20/x
  3. Step 3: Cross multiply
    125,128,314.40x = 187,692,471.60 × 73,984,007.20
  4. Step 4: Simplify right side
    125,128,314.40x = 13,886,241,170,240,196
  5. Step 5: Solve for x
    x = 13,886,241,170,240,196/125,128,314.40
  6. Step 6: Final answer
    x = 110,976,010.80

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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.