Home / 415,391,542.65-623,120,307.60-139,044,215.55

Finding the Fourth Proportional to 415,391,542.65, 623,120,307.60 and 139,044,215.55

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Solution

The fourth proportional to 415,391,542.65, 623,120,307.60 and 139,044,215.55 is: 208,577,367.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,391,542.65 : 623,120,307.60 = 139,044,215.55 : x
  2. Step 2: Convert to fraction form
    415,391,542.65/623,120,307.60 = 139,044,215.55/x
  3. Step 3: Cross multiply
    415,391,542.65x = 623,120,307.60 × 139,044,215.55
  4. Step 4: Simplify right side
    415,391,542.65x = 86,641,274,366,373,424
  5. Step 5: Solve for x
    x = 86,641,274,366,373,424/415,391,542.65
  6. Step 6: Final answer
    x = 208,577,367.30

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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.