Home / 68,953,561.16-103,445,475.77-20,435,217.66

Finding the Fourth Proportional to 68,953,561.16, 103,445,475.77 and 20,435,217.66

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Solution

The fourth proportional to 68,953,561.16, 103,445,475.77 and 20,435,217.66 is: 30,657,311.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,953,561.16 : 103,445,475.77 = 20,435,217.66 : x
  2. Step 2: Convert to fraction form
    68,953,561.16/103,445,475.77 = 20,435,217.66/x
  3. Step 3: Cross multiply
    68,953,561.16x = 103,445,475.77 × 20,435,217.66
  4. Step 4: Simplify right side
    68,953,561.16x = 2,113,930,813,353,294
  5. Step 5: Solve for x
    x = 2,113,930,813,353,294/68,953,561.16
  6. Step 6: Final answer
    x = 30,657,311.64

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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.