Home / 90,748,552.40-136,122,828.60-30,156,405.20

Finding the Fourth Proportional to 90,748,552.40, 136,122,828.60 and 30,156,405.20

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Solution

The fourth proportional to 90,748,552.40, 136,122,828.60 and 30,156,405.20 is: 45,234,607.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,748,552.40 : 136,122,828.60 = 30,156,405.20 : x
  2. Step 2: Convert to fraction form
    90,748,552.40/136,122,828.60 = 30,156,405.20/x
  3. Step 3: Cross multiply
    90,748,552.40x = 136,122,828.60 × 30,156,405.20
  4. Step 4: Simplify right side
    90,748,552.40x = 4,104,975,176,231,748.50
  5. Step 5: Solve for x
    x = 4,104,975,176,231,748.50/90,748,552.40
  6. Step 6: Final answer
    x = 45,234,607.80

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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.