Home / 527,721,752.60-728,255,736.24-289,568,500.80

Finding the Fourth Proportional to 527,721,752.60, 728,255,736.24 and 289,568,500.80

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Solution

The fourth proportional to 527,721,752.60, 728,255,736.24 and 289,568,500.80 is: 399,604,376.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,721,752.60 : 728,255,736.24 = 289,568,500.80 : x
  2. Step 2: Convert to fraction form
    527,721,752.60/728,255,736.24 = 289,568,500.80/x
  3. Step 3: Cross multiply
    527,721,752.60x = 728,255,736.24 × 289,568,500.80
  4. Step 4: Simplify right side
    527,721,752.60x = 210,879,921,742,017,056
  5. Step 5: Solve for x
    x = 210,879,921,742,017,056/527,721,752.60
  6. Step 6: Final answer
    x = 399,604,376.18

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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.