Home / 689,760,040.80-1,034,640,061.20-306,807,592.80

Finding the Fourth Proportional to 689,760,040.80, 1,034,640,061.20 and 306,807,592.80

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Solution

The fourth proportional to 689,760,040.80, 1,034,640,061.20 and 306,807,592.80 is: 460,211,389.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,760,040.80 : 1,034,640,061.20 = 306,807,592.80 : x
  2. Step 2: Convert to fraction form
    689,760,040.80/1,034,640,061.20 = 306,807,592.80/x
  3. Step 3: Cross multiply
    689,760,040.80x = 1,034,640,061.20 × 306,807,592.80
  4. Step 4: Simplify right side
    689,760,040.80x = 317,435,426,591,216,704
  5. Step 5: Solve for x
    x = 317,435,426,591,216,704/689,760,040.80
  6. Step 6: Final answer
    x = 460,211,389.20

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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.