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Finding the Fourth Proportional to 76,608,701.70, 114,913,052.55 and 47,887,268.10

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Solution

The fourth proportional to 76,608,701.70, 114,913,052.55 and 47,887,268.10 is: 71,830,902.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,608,701.70 : 114,913,052.55 = 47,887,268.10 : x
  2. Step 2: Convert to fraction form
    76,608,701.70/114,913,052.55 = 47,887,268.10/x
  3. Step 3: Cross multiply
    76,608,701.70x = 114,913,052.55 × 47,887,268.10
  4. Step 4: Simplify right side
    76,608,701.70x = 5,502,872,155,651,239
  5. Step 5: Solve for x
    x = 5,502,872,155,651,239/76,608,701.70
  6. Step 6: Final answer
    x = 71,830,902.15

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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.