Home / 68,953,561.41-103,445,476.16-20,435,217.91

Finding the Fourth Proportional to 68,953,561.41, 103,445,476.16 and 20,435,217.91

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Solution

The fourth proportional to 68,953,561.41, 103,445,476.16 and 20,435,217.91 is: 30,657,312.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,953,561.41 : 103,445,476.16 = 20,435,217.91 : x
  2. Step 2: Convert to fraction form
    68,953,561.41/103,445,476.16 = 20,435,217.91/x
  3. Step 3: Cross multiply
    68,953,561.41x = 103,445,476.16 × 20,435,217.91
  4. Step 4: Simplify right side
    68,953,561.41x = 2,113,930,847,133,310
  5. Step 5: Solve for x
    x = 2,113,930,847,133,310/68,953,561.41
  6. Step 6: Final answer
    x = 30,657,312.02

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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.