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Finding the Fourth Proportional to 125,842,648.40, 188,763,972.60 and 39,607,488.80

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Solution

The fourth proportional to 125,842,648.40, 188,763,972.60 and 39,607,488.80 is: 59,411,233.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,842,648.40 : 188,763,972.60 = 39,607,488.80 : x
  2. Step 2: Convert to fraction form
    125,842,648.40/188,763,972.60 = 39,607,488.80/x
  3. Step 3: Cross multiply
    125,842,648.40x = 188,763,972.60 × 39,607,488.80
  4. Step 4: Simplify right side
    125,842,648.40x = 7,476,466,930,598,006
  5. Step 5: Solve for x
    x = 7,476,466,930,598,006/125,842,648.40
  6. Step 6: Final answer
    x = 59,411,233.20

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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.