Home / 115,854,512.67-159,921,180.54-76,708,900.89

Finding the Fourth Proportional to 115,854,512.67, 159,921,180.54 and 76,708,900.89

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Solution

The fourth proportional to 115,854,512.67, 159,921,180.54 and 76,708,900.89 is: 105,886,060.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,854,512.67 : 159,921,180.54 = 76,708,900.89 : x
  2. Step 2: Convert to fraction form
    115,854,512.67/159,921,180.54 = 76,708,900.89/x
  3. Step 3: Cross multiply
    115,854,512.67x = 159,921,180.54 × 76,708,900.89
  4. Step 4: Simplify right side
    115,854,512.67x = 12,267,377,988,254,656
  5. Step 5: Solve for x
    x = 12,267,377,988,254,656/115,854,512.67
  6. Step 6: Final answer
    x = 105,886,060.94

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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.