Home / 279,918,626.60-386,287,870.91-156,159,303.72

Finding the Fourth Proportional to 279,918,626.60, 386,287,870.91 and 156,159,303.72

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Solution

The fourth proportional to 279,918,626.60, 386,287,870.91 and 156,159,303.72 is: 215,499,931.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,918,626.60 : 386,287,870.91 = 156,159,303.72 : x
  2. Step 2: Convert to fraction form
    279,918,626.60/386,287,870.91 = 156,159,303.72/x
  3. Step 3: Cross multiply
    279,918,626.60x = 386,287,870.91 × 156,159,303.72
  4. Step 4: Simplify right side
    279,918,626.60x = 60,322,444,956,006,040
  5. Step 5: Solve for x
    x = 60,322,444,956,006,040/279,918,626.60
  6. Step 6: Final answer
    x = 215,499,931.85

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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.