Home / 145,084,186.60-217,342,844.70-87,405,123.40

Finding the Fourth Proportional to 145,084,186.60, 217,342,844.70 and 87,405,123.40

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Solution

The fourth proportional to 145,084,186.60, 217,342,844.70 and 87,405,123.40 is: 130,936,931.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,084,186.60 : 217,342,844.70 = 87,405,123.40 : x
  2. Step 2: Convert to fraction form
    145,084,186.60/217,342,844.70 = 87,405,123.40/x
  3. Step 3: Cross multiply
    145,084,186.60x = 217,342,844.70 × 87,405,123.40
  4. Step 4: Simplify right side
    145,084,186.60x = 18,996,878,161,110,536
  5. Step 5: Solve for x
    x = 18,996,878,161,110,536/145,084,186.60
  6. Step 6: Final answer
    x = 130,936,931.21

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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.