Home / 667,761,831.20-1,001,642,746.80-459,937,344.80

Finding the Fourth Proportional to 667,761,831.20, 1,001,642,746.80 and 459,937,344.80

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Solution

The fourth proportional to 667,761,831.20, 1,001,642,746.80 and 459,937,344.80 is: 689,906,017.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,761,831.20 : 1,001,642,746.80 = 459,937,344.80 : x
  2. Step 2: Convert to fraction form
    667,761,831.20/1,001,642,746.80 = 459,937,344.80/x
  3. Step 3: Cross multiply
    667,761,831.20x = 1,001,642,746.80 × 459,937,344.80
  4. Step 4: Simplify right side
    667,761,831.20x = 460,692,905,401,370,688
  5. Step 5: Solve for x
    x = 460,692,905,401,370,688/667,761,831.20
  6. Step 6: Final answer
    x = 689,906,017.20

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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.