Home / 103,680,692.80-155,521,039.20-65,217,486.40

Finding the Fourth Proportional to 103,680,692.80, 155,521,039.20 and 65,217,486.40

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Solution

The fourth proportional to 103,680,692.80, 155,521,039.20 and 65,217,486.40 is: 97,826,229.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,680,692.80 : 155,521,039.20 = 65,217,486.40 : x
  2. Step 2: Convert to fraction form
    103,680,692.80/155,521,039.20 = 65,217,486.40/x
  3. Step 3: Cross multiply
    103,680,692.80x = 155,521,039.20 × 65,217,486.40
  4. Step 4: Simplify right side
    103,680,692.80x = 10,142,691,258,939,866
  5. Step 5: Solve for x
    x = 10,142,691,258,939,866/103,680,692.80
  6. Step 6: Final answer
    x = 97,826,229.60

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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.