Home / 99,010,831.20-148,516,246.80-90,500,776.80

Finding the Fourth Proportional to 99,010,831.20, 148,516,246.80 and 90,500,776.80

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Solution

The fourth proportional to 99,010,831.20, 148,516,246.80 and 90,500,776.80 is: 135,751,165.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,010,831.20 : 148,516,246.80 = 90,500,776.80 : x
  2. Step 2: Convert to fraction form
    99,010,831.20/148,516,246.80 = 90,500,776.80/x
  3. Step 3: Cross multiply
    99,010,831.20x = 148,516,246.80 × 90,500,776.80
  4. Step 4: Simplify right side
    99,010,831.20x = 13,440,835,702,820,514
  5. Step 5: Solve for x
    x = 13,440,835,702,820,514/99,010,831.20
  6. Step 6: Final answer
    x = 135,751,165.20

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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.