Home / 78,731,998.80-118,097,998.20-49,998,755.40

Finding the Fourth Proportional to 78,731,998.80, 118,097,998.20 and 49,998,755.40

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Solution

The fourth proportional to 78,731,998.80, 118,097,998.20 and 49,998,755.40 is: 74,998,133.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,731,998.80 : 118,097,998.20 = 49,998,755.40 : x
  2. Step 2: Convert to fraction form
    78,731,998.80/118,097,998.20 = 49,998,755.40/x
  3. Step 3: Cross multiply
    78,731,998.80x = 118,097,998.20 × 49,998,755.40
  4. Step 4: Simplify right side
    78,731,998.80x = 5,904,752,925,231,440
  5. Step 5: Solve for x
    x = 5,904,752,925,231,440/78,731,998.80
  6. Step 6: Final answer
    x = 74,998,133.10

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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.