Home / 99,028,291.20-148,400,719.20-72,916,823.40

Finding the Fourth Proportional to 99,028,291.20, 148,400,719.20 and 72,916,823.40

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Solution

The fourth proportional to 99,028,291.20, 148,400,719.20 and 72,916,823.40 is: 109,270,885.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,028,291.20 : 148,400,719.20 = 72,916,823.40 : x
  2. Step 2: Convert to fraction form
    99,028,291.20/148,400,719.20 = 72,916,823.40/x
  3. Step 3: Cross multiply
    99,028,291.20x = 148,400,719.20 × 72,916,823.40
  4. Step 4: Simplify right side
    99,028,291.20x = 10,820,909,034,339,390
  5. Step 5: Solve for x
    x = 10,820,909,034,339,390/99,028,291.20
  6. Step 6: Final answer
    x = 109,270,885.15

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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.