Home / 85,214,441.60-127,737,681.60-42,090,300.80

Finding the Fourth Proportional to 85,214,441.60, 127,737,681.60 and 42,090,300.80

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Solution

The fourth proportional to 85,214,441.60, 127,737,681.60 and 42,090,300.80 is: 63,093,970.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,214,441.60 : 127,737,681.60 = 42,090,300.80 : x
  2. Step 2: Convert to fraction form
    85,214,441.60/127,737,681.60 = 42,090,300.80/x
  3. Step 3: Cross multiply
    85,214,441.60x = 127,737,681.60 × 42,090,300.80
  4. Step 4: Simplify right side
    85,214,441.60x = 5,376,517,442,038,625
  5. Step 5: Solve for x
    x = 5,376,517,442,038,625/85,214,441.60
  6. Step 6: Final answer
    x = 63,093,970.24

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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.