Home / 100,662,083.24-138,912,346.85-56,609,068.86

Finding the Fourth Proportional to 100,662,083.24, 138,912,346.85 and 56,609,068.86

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Solution

The fourth proportional to 100,662,083.24, 138,912,346.85 and 56,609,068.86 is: 78,119,768.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,662,083.24 : 138,912,346.85 = 56,609,068.86 : x
  2. Step 2: Convert to fraction form
    100,662,083.24/138,912,346.85 = 56,609,068.86/x
  3. Step 3: Cross multiply
    100,662,083.24x = 138,912,346.85 × 56,609,068.86
  4. Step 4: Simplify right side
    100,662,083.24x = 7,863,698,608,052,809
  5. Step 5: Solve for x
    x = 7,863,698,608,052,809/100,662,083.24
  6. Step 6: Final answer
    x = 78,119,768.19

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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.