Home / 103,680,693.30-155,521,039.95-76,806,837.30

Finding the Fourth Proportional to 103,680,693.30, 155,521,039.95 and 76,806,837.30

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Solution

The fourth proportional to 103,680,693.30, 155,521,039.95 and 76,806,837.30 is: 115,210,255.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,680,693.30 : 155,521,039.95 = 76,806,837.30 : x
  2. Step 2: Convert to fraction form
    103,680,693.30/155,521,039.95 = 76,806,837.30/x
  3. Step 3: Cross multiply
    103,680,693.30x = 155,521,039.95 × 76,806,837.30
  4. Step 4: Simplify right side
    103,680,693.30x = 11,945,079,212,166,448
  5. Step 5: Solve for x
    x = 11,945,079,212,166,448/103,680,693.30
  6. Step 6: Final answer
    x = 115,210,255.95

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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.