Home / 78,868,348.20-118,103,456.70-51,795,426.60

Finding the Fourth Proportional to 78,868,348.20, 118,103,456.70 and 51,795,426.60

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Solution

The fourth proportional to 78,868,348.20, 118,103,456.70 and 51,795,426.60 is: 77,562,407.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,868,348.20 : 118,103,456.70 = 51,795,426.60 : x
  2. Step 2: Convert to fraction form
    78,868,348.20/118,103,456.70 = 51,795,426.60/x
  3. Step 3: Cross multiply
    78,868,348.20x = 118,103,456.70 × 51,795,426.60
  4. Step 4: Simplify right side
    78,868,348.20x = 6,117,218,922,711,129
  5. Step 5: Solve for x
    x = 6,117,218,922,711,129/78,868,348.20
  6. Step 6: Final answer
    x = 77,562,407.00

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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.