Home / 78,920,815.32-108,811,617.84-60,358,725.72

Finding the Fourth Proportional to 78,920,815.32, 108,811,617.84 and 60,358,725.72

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Solution

The fourth proportional to 78,920,815.32, 108,811,617.84 and 60,358,725.72 is: 83,219,244.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,920,815.32 : 108,811,617.84 = 60,358,725.72 : x
  2. Step 2: Convert to fraction form
    78,920,815.32/108,811,617.84 = 60,358,725.72/x
  3. Step 3: Cross multiply
    78,920,815.32x = 108,811,617.84 × 60,358,725.72
  4. Step 4: Simplify right side
    78,920,815.32x = 6,567,730,596,354,019
  5. Step 5: Solve for x
    x = 6,567,730,596,354,019/78,920,815.32
  6. Step 6: Final answer
    x = 83,219,244.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.