Home / 868,761,007.20-1,303,141,510.80-460,614,319.20

Finding the Fourth Proportional to 868,761,007.20, 1,303,141,510.80 and 460,614,319.20

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Solution

The fourth proportional to 868,761,007.20, 1,303,141,510.80 and 460,614,319.20 is: 690,921,478.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,761,007.20 : 1,303,141,510.80 = 460,614,319.20 : x
  2. Step 2: Convert to fraction form
    868,761,007.20/1,303,141,510.80 = 460,614,319.20/x
  3. Step 3: Cross multiply
    868,761,007.20x = 1,303,141,510.80 × 460,614,319.20
  4. Step 4: Simplify right side
    868,761,007.20x = 600,245,639,818,401,408
  5. Step 5: Solve for x
    x = 600,245,639,818,401,408/868,761,007.20
  6. Step 6: Final answer
    x = 690,921,478.80

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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.