Home / 103,049,153.76-142,208,142.48-56,644,163.04

Finding the Fourth Proportional to 103,049,153.76, 142,208,142.48 and 56,644,163.04

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Solution

The fourth proportional to 103,049,153.76, 142,208,142.48 and 56,644,163.04 is: 78,169,115.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,049,153.76 : 142,208,142.48 = 56,644,163.04 : x
  2. Step 2: Convert to fraction form
    103,049,153.76/142,208,142.48 = 56,644,163.04/x
  3. Step 3: Cross multiply
    103,049,153.76x = 142,208,142.48 × 56,644,163.04
  4. Step 4: Simplify right side
    103,049,153.76x = 8,055,261,208,252,669
  5. Step 5: Solve for x
    x = 8,055,261,208,252,669/103,049,153.76
  6. Step 6: Final answer
    x = 78,169,115.56

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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.