Home / 161,762,765.40-242,644,148.10-121,451,981.40

Finding the Fourth Proportional to 161,762,765.40, 242,644,148.10 and 121,451,981.40

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Solution

The fourth proportional to 161,762,765.40, 242,644,148.10 and 121,451,981.40 is: 182,177,972.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,762,765.40 : 242,644,148.10 = 121,451,981.40 : x
  2. Step 2: Convert to fraction form
    161,762,765.40/242,644,148.10 = 121,451,981.40/x
  3. Step 3: Cross multiply
    161,762,765.40x = 242,644,148.10 × 121,451,981.40
  4. Step 4: Simplify right side
    161,762,765.40x = 29,469,612,561,860,048
  5. Step 5: Solve for x
    x = 29,469,612,561,860,048/161,762,765.40
  6. Step 6: Final answer
    x = 182,177,972.10

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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.