Home / 145,084,187.60-217,342,846.20-87,405,124.40

Finding the Fourth Proportional to 145,084,187.60, 217,342,846.20 and 87,405,124.40

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Solution

The fourth proportional to 145,084,187.60, 217,342,846.20 and 87,405,124.40 is: 130,936,932.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,084,187.60 : 217,342,846.20 = 87,405,124.40 : x
  2. Step 2: Convert to fraction form
    145,084,187.60/217,342,846.20 = 87,405,124.40/x
  3. Step 3: Cross multiply
    145,084,187.60x = 217,342,846.20 × 87,405,124.40
  4. Step 4: Simplify right side
    145,084,187.60x = 18,996,878,509,561,068
  5. Step 5: Solve for x
    x = 18,996,878,509,561,068/145,084,187.60
  6. Step 6: Final answer
    x = 130,936,932.71

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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.