Home / 289,023,362.13-398,852,624.80-156,864,358.69

Finding the Fourth Proportional to 289,023,362.13, 398,852,624.80 and 156,864,358.69

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Solution

The fourth proportional to 289,023,362.13, 398,852,624.80 and 156,864,358.69 is: 216,473,023.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,023,362.13 : 398,852,624.80 = 156,864,358.69 : x
  2. Step 2: Convert to fraction form
    289,023,362.13/398,852,624.80 = 156,864,358.69/x
  3. Step 3: Cross multiply
    289,023,362.13x = 398,852,624.80 × 156,864,358.69
  4. Step 4: Simplify right side
    289,023,362.13x = 62,565,761,201,288,000
  5. Step 5: Solve for x
    x = 62,565,761,201,288,000/289,023,362.13
  6. Step 6: Final answer
    x = 216,473,023.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.