Home / 278,819,237.60-418,228,856.40-97,005,989.60

Finding the Fourth Proportional to 278,819,237.60, 418,228,856.40 and 97,005,989.60

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Solution

The fourth proportional to 278,819,237.60, 418,228,856.40 and 97,005,989.60 is: 145,508,984.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,819,237.60 : 418,228,856.40 = 97,005,989.60 : x
  2. Step 2: Convert to fraction form
    278,819,237.60/418,228,856.40 = 97,005,989.60/x
  3. Step 3: Cross multiply
    278,819,237.60x = 418,228,856.40 × 97,005,989.60
  4. Step 4: Simplify right side
    278,819,237.60x = 40,570,704,094,358,288
  5. Step 5: Solve for x
    x = 40,570,704,094,358,288/278,819,237.60
  6. Step 6: Final answer
    x = 145,508,984.40

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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.