Home / 90,876,417,135.40-136,314,625,703.10-86,537,307,658.60

Finding the Fourth Proportional to 90,876,417,135.40, 136,314,625,703.10 and 86,537,307,658.60

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Solution

The fourth proportional to 90,876,417,135.40, 136,314,625,703.10 and 86,537,307,658.60 is: 129,805,961,487.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,876,417,135.40 : 136,314,625,703.10 = 86,537,307,658.60 : x
  2. Step 2: Convert to fraction form
    90,876,417,135.40/136,314,625,703.10 = 86,537,307,658.60/x
  3. Step 3: Cross multiply
    90,876,417,135.40x = 136,314,625,703.10 × 86,537,307,658.60
  4. Step 4: Simplify right side
    90,876,417,135.40x = 11,796,300,702,836,068,450,304
  5. Step 5: Solve for x
    x = 11,796,300,702,836,068,450,304/90,876,417,135.40
  6. Step 6: Final answer
    x = 129,805,961,487.90

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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.