Home / 145,328,327,104.91-217,991,575,914.54-78,207,189,301.64

Finding the Fourth Proportional to 145,328,327,104.91, 217,991,575,914.54 and 78,207,189,301.64

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Solution

The fourth proportional to 145,328,327,104.91, 217,991,575,914.54 and 78,207,189,301.64 is: 117,310,291,691.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,328,327,104.91 : 217,991,575,914.54 = 78,207,189,301.64 : x
  2. Step 2: Convert to fraction form
    145,328,327,104.91/217,991,575,914.54 = 78,207,189,301.64/x
  3. Step 3: Cross multiply
    145,328,327,104.91x = 217,991,575,914.54 × 78,207,189,301.64
  4. Step 4: Simplify right side
    145,328,327,104.91x = 17,048,508,443,711,256,920,064
  5. Step 5: Solve for x
    x = 17,048,508,443,711,256,920,064/145,328,327,104.91
  6. Step 6: Final answer
    x = 117,310,291,691.48

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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.