Home / 78,336,001.60-117,504,002.40-69,601,998.40

Finding the Fourth Proportional to 78,336,001.60, 117,504,002.40 and 69,601,998.40

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Solution

The fourth proportional to 78,336,001.60, 117,504,002.40 and 69,601,998.40 is: 104,402,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,336,001.60 : 117,504,002.40 = 69,601,998.40 : x
  2. Step 2: Convert to fraction form
    78,336,001.60/117,504,002.40 = 69,601,998.40/x
  3. Step 3: Cross multiply
    78,336,001.60x = 117,504,002.40 × 69,601,998.40
  4. Step 4: Simplify right side
    78,336,001.60x = 8,178,513,387,038,397
  5. Step 5: Solve for x
    x = 8,178,513,387,038,397/78,336,001.60
  6. Step 6: Final answer
    x = 104,402,997.60

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1.5x scale

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.