Home / 103,680,541.10-155,520,811.65-76,806,685.10

Finding the Fourth Proportional to 103,680,541.10, 155,520,811.65 and 76,806,685.10

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Solution

The fourth proportional to 103,680,541.10, 155,520,811.65 and 76,806,685.10 is: 115,210,027.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,680,541.10 : 155,520,811.65 = 76,806,685.10 : x
  2. Step 2: Convert to fraction form
    103,680,541.10/155,520,811.65 = 76,806,685.10/x
  3. Step 3: Cross multiply
    103,680,541.10x = 155,520,811.65 × 76,806,685.10
  4. Step 4: Simplify right side
    103,680,541.10x = 11,945,038,006,897,960
  5. Step 5: Solve for x
    x = 11,945,038,006,897,960/103,680,541.10
  6. Step 6: Final answer
    x = 115,210,027.65

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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.