Home / 78,916,929.60-118,375,394.40-61,001,025.60

Finding the Fourth Proportional to 78,916,929.60, 118,375,394.40 and 61,001,025.60

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Solution

The fourth proportional to 78,916,929.60, 118,375,394.40 and 61,001,025.60 is: 91,501,538.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,916,929.60 : 118,375,394.40 = 61,001,025.60 : x
  2. Step 2: Convert to fraction form
    78,916,929.60/118,375,394.40 = 61,001,025.60/x
  3. Step 3: Cross multiply
    78,916,929.60x = 118,375,394.40 × 61,001,025.60
  4. Step 4: Simplify right side
    78,916,929.60x = 7,221,020,464,204,497
  5. Step 5: Solve for x
    x = 7,221,020,464,204,497/78,916,929.60
  6. Step 6: Final answer
    x = 91,501,538.40

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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.