Home / 78,254,470.58-117,385,480.80-25,730,979.14

Finding the Fourth Proportional to 78,254,470.58, 117,385,480.80 and 25,730,979.14

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Solution

The fourth proportional to 78,254,470.58, 117,385,480.80 and 25,730,979.14 is: 38,597,709.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,254,470.58 : 117,385,480.80 = 25,730,979.14 : x
  2. Step 2: Convert to fraction form
    78,254,470.58/117,385,480.80 = 25,730,979.14/x
  3. Step 3: Cross multiply
    78,254,470.58x = 117,385,480.80 × 25,730,979.14
  4. Step 4: Simplify right side
    78,254,470.58x = 3,020,443,358,097,134
  5. Step 5: Solve for x
    x = 3,020,443,358,097,134/78,254,470.58
  6. Step 6: Final answer
    x = 38,597,709.96

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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.