Home / 280,890,001.40-421,335,002.10-99,155,550.20

Finding the Fourth Proportional to 280,890,001.40, 421,335,002.10 and 99,155,550.20

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Solution

The fourth proportional to 280,890,001.40, 421,335,002.10 and 99,155,550.20 is: 148,733,325.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,890,001.40 : 421,335,002.10 = 99,155,550.20 : x
  2. Step 2: Convert to fraction form
    280,890,001.40/421,335,002.10 = 99,155,550.20/x
  3. Step 3: Cross multiply
    280,890,001.40x = 421,335,002.10 × 99,155,550.20
  4. Step 4: Simplify right side
    280,890,001.40x = 41,777,703,951,743,656
  5. Step 5: Solve for x
    x = 41,777,703,951,743,656/280,890,001.40
  6. Step 6: Final answer
    x = 148,733,325.30

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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.