Home / 78,807,979.20-118,286,618.40-48,574,891.20

Finding the Fourth Proportional to 78,807,979.20, 118,286,618.40 and 48,574,891.20

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Solution

The fourth proportional to 78,807,979.20, 118,286,618.40 and 48,574,891.20 is: 72,908,348.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,807,979.20 : 118,286,618.40 = 48,574,891.20 : x
  2. Step 2: Convert to fraction form
    78,807,979.20/118,286,618.40 = 48,574,891.20/x
  3. Step 3: Cross multiply
    78,807,979.20x = 118,286,618.40 × 48,574,891.20
  4. Step 4: Simplify right side
    78,807,979.20x = 5,745,759,619,195,919
  5. Step 5: Solve for x
    x = 5,745,759,619,195,919/78,807,979.20
  6. Step 6: Final answer
    x = 72,908,348.59

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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.