Home / 85,152,374.40-127,728,561.60-42,028,233.60

Finding the Fourth Proportional to 85,152,374.40, 127,728,561.60 and 42,028,233.60

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Solution

The fourth proportional to 85,152,374.40, 127,728,561.60 and 42,028,233.60 is: 63,042,350.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,152,374.40 : 127,728,561.60 = 42,028,233.60 : x
  2. Step 2: Convert to fraction form
    85,152,374.40/127,728,561.60 = 42,028,233.60/x
  3. Step 3: Cross multiply
    85,152,374.40x = 127,728,561.60 × 42,028,233.60
  4. Step 4: Simplify right side
    85,152,374.40x = 5,368,205,824,316,790
  5. Step 5: Solve for x
    x = 5,368,205,824,316,790/85,152,374.40
  6. Step 6: Final answer
    x = 63,042,350.40

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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.