Home / 115,854,513.67-159,921,181.92-76,708,901.89

Finding the Fourth Proportional to 115,854,513.67, 159,921,181.92 and 76,708,901.89

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Solution

The fourth proportional to 115,854,513.67, 159,921,181.92 and 76,708,901.89 is: 105,886,062.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,854,513.67 : 159,921,181.92 = 76,708,901.89 : x
  2. Step 2: Convert to fraction form
    115,854,513.67/159,921,181.92 = 76,708,901.89/x
  3. Step 3: Cross multiply
    115,854,513.67x = 159,921,181.92 × 76,708,901.89
  4. Step 4: Simplify right side
    115,854,513.67x = 12,267,378,254,034,120
  5. Step 5: Solve for x
    x = 12,267,378,254,034,120/115,854,513.67
  6. Step 6: Final answer
    x = 105,886,062.32

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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.