Home / 145,084,188.60-217,342,847.70-87,405,125.40

Finding the Fourth Proportional to 145,084,188.60, 217,342,847.70 and 87,405,125.40

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Solution

The fourth proportional to 145,084,188.60, 217,342,847.70 and 87,405,125.40 is: 130,936,934.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,084,188.60 : 217,342,847.70 = 87,405,125.40 : x
  2. Step 2: Convert to fraction form
    145,084,188.60/217,342,847.70 = 87,405,125.40/x
  3. Step 3: Cross multiply
    145,084,188.60x = 217,342,847.70 × 87,405,125.40
  4. Step 4: Simplify right side
    145,084,188.60x = 18,996,878,858,011,600
  5. Step 5: Solve for x
    x = 18,996,878,858,011,600/145,084,188.60
  6. Step 6: Final answer
    x = 130,936,934.21

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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.