Home / 90,696,067.60-136,044,101.40-49,739,681.20

Finding the Fourth Proportional to 90,696,067.60, 136,044,101.40 and 49,739,681.20

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Solution

The fourth proportional to 90,696,067.60, 136,044,101.40 and 49,739,681.20 is: 74,609,521.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,696,067.60 : 136,044,101.40 = 49,739,681.20 : x
  2. Step 2: Convert to fraction form
    90,696,067.60/136,044,101.40 = 49,739,681.20/x
  3. Step 3: Cross multiply
    90,696,067.60x = 136,044,101.40 × 49,739,681.20
  4. Step 4: Simplify right side
    90,696,067.60x = 6,766,790,232,776,474
  5. Step 5: Solve for x
    x = 6,766,790,232,776,474/90,696,067.60
  6. Step 6: Final answer
    x = 74,609,521.80

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1.5x scale

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.