Home / 71,877,070.86-99,190,362.12-40,940,118.78

Finding the Fourth Proportional to 71,877,070.86, 99,190,362.12 and 40,940,118.78

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Solution

The fourth proportional to 71,877,070.86, 99,190,362.12 and 40,940,118.78 is: 56,497,366.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,877,070.86 : 99,190,362.12 = 40,940,118.78 : x
  2. Step 2: Convert to fraction form
    71,877,070.86/99,190,362.12 = 40,940,118.78/x
  3. Step 3: Cross multiply
    71,877,070.86x = 99,190,362.12 × 40,940,118.78
  4. Step 4: Simplify right side
    71,877,070.86x = 4,060,865,207,024,013
  5. Step 5: Solve for x
    x = 4,060,865,207,024,013/71,877,070.86
  6. Step 6: Final answer
    x = 56,497,366.38

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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.