Home / 91,109,747.40-136,664,621.10-84,094,726.20

Finding the Fourth Proportional to 91,109,747.40, 136,664,621.10 and 84,094,726.20

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Solution

The fourth proportional to 91,109,747.40, 136,664,621.10 and 84,094,726.20 is: 126,142,089.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,109,747.40 : 136,664,621.10 = 84,094,726.20 : x
  2. Step 2: Convert to fraction form
    91,109,747.40/136,664,621.10 = 84,094,726.20/x
  3. Step 3: Cross multiply
    91,109,747.40x = 136,664,621.10 × 84,094,726.20
  4. Step 4: Simplify right side
    91,109,747.40x = 11,492,773,892,631,242
  5. Step 5: Solve for x
    x = 11,492,773,892,631,242/91,109,747.40
  6. Step 6: Final answer
    x = 126,142,089.30

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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.