Home / 859,386,409.38-1,288,161,834.21-490,126,254.66

Finding the Fourth Proportional to 859,386,409.38, 1,288,161,834.21 and 490,126,254.66

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Solution

The fourth proportional to 859,386,409.38, 1,288,161,834.21 and 490,126,254.66 is: 734,665,952.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,386,409.38 : 1,288,161,834.21 = 490,126,254.66 : x
  2. Step 2: Convert to fraction form
    859,386,409.38/1,288,161,834.21 = 490,126,254.66/x
  3. Step 3: Cross multiply
    859,386,409.38x = 1,288,161,834.21 × 490,126,254.66
  4. Step 4: Simplify right side
    859,386,409.38x = 631,361,935,197,303,168
  5. Step 5: Solve for x
    x = 631,361,935,197,303,168/859,386,409.38
  6. Step 6: Final answer
    x = 734,665,952.71

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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.