Home / 103,680,455.55-155,520,683.33-76,806,599.55

Finding the Fourth Proportional to 103,680,455.55, 155,520,683.33 and 76,806,599.55

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Solution

The fourth proportional to 103,680,455.55, 155,520,683.33 and 76,806,599.55 is: 115,209,899.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,680,455.55 : 155,520,683.33 = 76,806,599.55 : x
  2. Step 2: Convert to fraction form
    103,680,455.55/155,520,683.33 = 76,806,599.55/x
  3. Step 3: Cross multiply
    103,680,455.55x = 155,520,683.33 × 76,806,599.55
  4. Step 4: Simplify right side
    103,680,455.55x = 11,945,014,845,885,636
  5. Step 5: Solve for x
    x = 11,945,014,845,885,636/103,680,455.55
  6. Step 6: Final answer
    x = 115,209,899.33

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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.