Home / 78,959,097.60-118,438,646.40-59,827,221.60

Finding the Fourth Proportional to 78,959,097.60, 118,438,646.40 and 59,827,221.60

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Solution

The fourth proportional to 78,959,097.60, 118,438,646.40 and 59,827,221.60 is: 89,740,832.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,959,097.60 : 118,438,646.40 = 59,827,221.60 : x
  2. Step 2: Convert to fraction form
    78,959,097.60/118,438,646.40 = 59,827,221.60/x
  3. Step 3: Cross multiply
    78,959,097.60x = 118,438,646.40 × 59,827,221.60
  4. Step 4: Simplify right side
    78,959,097.60x = 7,085,855,144,176,843
  5. Step 5: Solve for x
    x = 7,085,855,144,176,843/78,959,097.60
  6. Step 6: Final answer
    x = 89,740,832.40

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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.