Home / 108,609,862,971.60-149,894,658,837.18-65,789,089,423.92

Finding the Fourth Proportional to 108,609,862,971.60, 149,894,658,837.18 and 65,789,089,423.92

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Solution

The fourth proportional to 108,609,862,971.60, 149,894,658,837.18 and 65,789,089,423.92 is: 90,796,847,032.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,609,862,971.60 : 149,894,658,837.18 = 65,789,089,423.92 : x
  2. Step 2: Convert to fraction form
    108,609,862,971.60/149,894,658,837.18 = 65,789,089,423.92/x
  3. Step 3: Cross multiply
    108,609,862,971.60x = 149,894,658,837.18 × 65,789,089,423.92
  4. Step 4: Simplify right side
    108,609,862,971.60x = 9,861,433,114,407,215,300,608
  5. Step 5: Solve for x
    x = 9,861,433,114,407,215,300,608/108,609,862,971.60
  6. Step 6: Final answer
    x = 90,796,847,032.08

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.