Home / 78,465,594.72-108,280,823.84-45,427,236.96

Finding the Fourth Proportional to 78,465,594.72, 108,280,823.84 and 45,427,236.96

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Solution

The fourth proportional to 78,465,594.72, 108,280,823.84 and 45,427,236.96 is: 62,688,604.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,465,594.72 : 108,280,823.84 = 45,427,236.96 : x
  2. Step 2: Convert to fraction form
    78,465,594.72/108,280,823.84 = 45,427,236.96/x
  3. Step 3: Cross multiply
    78,465,594.72x = 108,280,823.84 × 45,427,236.96
  4. Step 4: Simplify right side
    78,465,594.72x = 4,918,898,642,803,697
  5. Step 5: Solve for x
    x = 4,918,898,642,803,697/78,465,594.72
  6. Step 6: Final answer
    x = 62,688,604.61

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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.