Home / 131,563,221.20-197,344,831.80-90,748,552.40

Finding the Fourth Proportional to 131,563,221.20, 197,344,831.80 and 90,748,552.40

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Solution

The fourth proportional to 131,563,221.20, 197,344,831.80 and 90,748,552.40 is: 136,122,828.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,563,221.20 : 197,344,831.80 = 90,748,552.40 : x
  2. Step 2: Convert to fraction form
    131,563,221.20/197,344,831.80 = 90,748,552.40/x
  3. Step 3: Cross multiply
    131,563,221.20x = 197,344,831.80 × 90,748,552.40
  4. Step 4: Simplify right side
    131,563,221.20x = 17,908,757,809,471,488
  5. Step 5: Solve for x
    x = 17,908,757,809,471,488/131,563,221.20
  6. Step 6: Final answer
    x = 136,122,828.60

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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.