Home / 103,418,015.76-155,079,329.76-30,608,761.68

Finding the Fourth Proportional to 103,418,015.76, 155,079,329.76 and 30,608,761.68

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Solution

The fourth proportional to 103,418,015.76, 155,079,329.76 and 30,608,761.68 is: 45,899,026.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,418,015.76 : 155,079,329.76 = 30,608,761.68 : x
  2. Step 2: Convert to fraction form
    103,418,015.76/155,079,329.76 = 30,608,761.68/x
  3. Step 3: Cross multiply
    103,418,015.76x = 155,079,329.76 × 30,608,761.68
  4. Step 4: Simplify right side
    103,418,015.76x = 4,746,786,246,117,971
  5. Step 5: Solve for x
    x = 4,746,786,246,117,971/103,418,015.76
  6. Step 6: Final answer
    x = 45,899,026.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.