Home / 52,128,082.80-78,217,367.40-21,445,336.80

Finding the Fourth Proportional to 52,128,082.80, 78,217,367.40 and 21,445,336.80

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Solution

The fourth proportional to 52,128,082.80, 78,217,367.40 and 21,445,336.80 is: 32,178,390.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,128,082.80 : 78,217,367.40 = 21,445,336.80 : x
  2. Step 2: Convert to fraction form
    52,128,082.80/78,217,367.40 = 21,445,336.80/x
  3. Step 3: Cross multiply
    52,128,082.80x = 78,217,367.40 × 21,445,336.80
  4. Step 4: Simplify right side
    52,128,082.80x = 1,677,397,787,502,340.50
  5. Step 5: Solve for x
    x = 1,677,397,787,502,340.50/52,128,082.80
  6. Step 6: Final answer
    x = 32,178,390.18

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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.