Home / 77,339,097.60-106,725,511.80-42,531,680.40

Finding the Fourth Proportional to 77,339,097.60, 106,725,511.80 and 42,531,680.40

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Solution

The fourth proportional to 77,339,097.60, 106,725,511.80 and 42,531,680.40 is: 58,692,375.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,339,097.60 : 106,725,511.80 = 42,531,680.40 : x
  2. Step 2: Convert to fraction form
    77,339,097.60/106,725,511.80 = 42,531,680.40/x
  3. Step 3: Cross multiply
    77,339,097.60x = 106,725,511.80 × 42,531,680.40
  4. Step 4: Simplify right side
    77,339,097.60x = 4,539,215,358,404,028
  5. Step 5: Solve for x
    x = 4,539,215,358,404,028/77,339,097.60
  6. Step 6: Final answer
    x = 58,692,375.52

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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.