Home / 72,307,900.40-99,815,439.65-48,818,258.76

Finding the Fourth Proportional to 72,307,900.40, 99,815,439.65 and 48,818,258.76

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Solution

The fourth proportional to 72,307,900.40, 99,815,439.65 and 48,818,258.76 is: 67,389,814.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,307,900.40 : 99,815,439.65 = 48,818,258.76 : x
  2. Step 2: Convert to fraction form
    72,307,900.40/99,815,439.65 = 48,818,258.76/x
  3. Step 3: Cross multiply
    72,307,900.40x = 99,815,439.65 × 48,818,258.76
  4. Step 4: Simplify right side
    72,307,900.40x = 4,872,815,960,832,772
  5. Step 5: Solve for x
    x = 4,872,815,960,832,772/72,307,900.40
  6. Step 6: Final answer
    x = 67,389,814.03

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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.