Home / 72,689,062.80-109,033,594.20-52,281,728.40

Finding the Fourth Proportional to 72,689,062.80, 109,033,594.20 and 52,281,728.40

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Solution

The fourth proportional to 72,689,062.80, 109,033,594.20 and 52,281,728.40 is: 78,422,592.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,689,062.80 : 109,033,594.20 = 52,281,728.40 : x
  2. Step 2: Convert to fraction form
    72,689,062.80/109,033,594.20 = 52,281,728.40/x
  3. Step 3: Cross multiply
    72,689,062.80x = 109,033,594.20 × 52,281,728.40
  4. Step 4: Simplify right side
    72,689,062.80x = 5,700,464,758,440,215
  5. Step 5: Solve for x
    x = 5,700,464,758,440,215/72,689,062.80
  6. Step 6: Final answer
    x = 78,422,592.60

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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.