Home / 78,732,205.80-118,098,308.70-73,693,357.80

Finding the Fourth Proportional to 78,732,205.80, 118,098,308.70 and 73,693,357.80

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Solution

The fourth proportional to 78,732,205.80, 118,098,308.70 and 73,693,357.80 is: 110,540,036.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732,205.80 : 118,098,308.70 = 73,693,357.80 : x
  2. Step 2: Convert to fraction form
    78,732,205.80/118,098,308.70 = 73,693,357.80/x
  3. Step 3: Cross multiply
    78,732,205.80x = 118,098,308.70 × 73,693,357.80
  4. Step 4: Simplify right side
    78,732,205.80x = 8,703,060,918,603,953
  5. Step 5: Solve for x
    x = 8,703,060,918,603,953/78,732,205.80
  6. Step 6: Final answer
    x = 110,540,036.70

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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.