Home / 1,038,962,540.30-1,560,930,032.56-666,200,750.72

Finding the Fourth Proportional to 1,038,962,540.30, 1,560,930,032.56 and 666,200,750.72

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Solution

The fourth proportional to 1,038,962,540.30, 1,560,930,032.56 and 666,200,750.72 is: 1,000,895,334.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,962,540.30 : 1,560,930,032.56 = 666,200,750.72 : x
  2. Step 2: Convert to fraction form
    1,038,962,540.30/1,560,930,032.56 = 666,200,750.72/x
  3. Step 3: Cross multiply
    1,038,962,540.30x = 1,560,930,032.56 × 666,200,750.72
  4. Step 4: Simplify right side
    1,038,962,540.30x = 1,039,892,759,512,866,048
  5. Step 5: Solve for x
    x = 1,039,892,759,512,866,048/1,038,962,540.30
  6. Step 6: Final answer
    x = 1,000,895,334.70

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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.