Home / 142,278,055.22-196,267,978.17-86,540,523.14

Finding the Fourth Proportional to 142,278,055.22, 196,267,978.17 and 86,540,523.14

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Solution

The fourth proportional to 142,278,055.22, 196,267,978.17 and 86,540,523.14 is: 119,379,854.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,278,055.22 : 196,267,978.17 = 86,540,523.14 : x
  2. Step 2: Convert to fraction form
    142,278,055.22/196,267,978.17 = 86,540,523.14/x
  3. Step 3: Cross multiply
    142,278,055.22x = 196,267,978.17 × 86,540,523.14
  4. Step 4: Simplify right side
    142,278,055.22x = 16,985,133,506,461,898
  5. Step 5: Solve for x
    x = 16,985,133,506,461,898/142,278,055.22
  6. Step 6: Final answer
    x = 119,379,854.33

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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.