Home / 91,042,215.80-136,563,323.70-84,995,598.20

Finding the Fourth Proportional to 91,042,215.80, 136,563,323.70 and 84,995,598.20

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Solution

The fourth proportional to 91,042,215.80, 136,563,323.70 and 84,995,598.20 is: 127,493,397.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,042,215.80 : 136,563,323.70 = 84,995,598.20 : x
  2. Step 2: Convert to fraction form
    91,042,215.80/136,563,323.70 = 84,995,598.20/x
  3. Step 3: Cross multiply
    91,042,215.80x = 136,563,323.70 × 84,995,598.20
  4. Step 4: Simplify right side
    91,042,215.80x = 11,607,281,390,061,736
  5. Step 5: Solve for x
    x = 11,607,281,390,061,736/91,042,215.80
  6. Step 6: Final answer
    x = 127,493,397.30

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Double scale
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Similar ratio
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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.