Home / 100,508,732.60-150,763,098.90-90,305,065.40

Finding the Fourth Proportional to 100,508,732.60, 150,763,098.90 and 90,305,065.40

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Solution

The fourth proportional to 100,508,732.60, 150,763,098.90 and 90,305,065.40 is: 135,457,598.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,508,732.60 : 150,763,098.90 = 90,305,065.40 : x
  2. Step 2: Convert to fraction form
    100,508,732.60/150,763,098.90 = 90,305,065.40/x
  3. Step 3: Cross multiply
    100,508,732.60x = 150,763,098.90 × 90,305,065.40
  4. Step 4: Simplify right side
    100,508,732.60x = 13,614,671,506,071,170
  5. Step 5: Solve for x
    x = 13,614,671,506,071,170/100,508,732.60
  6. Step 6: Final answer
    x = 135,457,598.10

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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.