Home / 90,845,165.40-136,267,748.10-83,830,144.20

Finding the Fourth Proportional to 90,845,165.40, 136,267,748.10 and 83,830,144.20

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Solution

The fourth proportional to 90,845,165.40, 136,267,748.10 and 83,830,144.20 is: 125,745,216.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,845,165.40 : 136,267,748.10 = 83,830,144.20 : x
  2. Step 2: Convert to fraction form
    90,845,165.40/136,267,748.10 = 83,830,144.20/x
  3. Step 3: Cross multiply
    90,845,165.40x = 136,267,748.10 × 83,830,144.20
  4. Step 4: Simplify right side
    90,845,165.40x = 11,423,344,973,032,276
  5. Step 5: Solve for x
    x = 11,423,344,973,032,276/90,845,165.40
  6. Step 6: Final answer
    x = 125,745,216.30

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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.