Home / 1,225,425,940.98-1,690,856,515.38-730,434,707.70

Finding the Fourth Proportional to 1,225,425,940.98, 1,690,856,515.38 and 730,434,707.70

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Solution

The fourth proportional to 1,225,425,940.98, 1,690,856,515.38 and 730,434,707.70 is: 1,007,862,036.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,425,940.98 : 1,690,856,515.38 = 730,434,707.70 : x
  2. Step 2: Convert to fraction form
    1,225,425,940.98/1,690,856,515.38 = 730,434,707.70/x
  3. Step 3: Cross multiply
    1,225,425,940.98x = 1,690,856,515.38 × 730,434,707.70
  4. Step 4: Simplify right side
    1,225,425,940.98x = 1,235,060,284,574,231,040
  5. Step 5: Solve for x
    x = 1,235,060,284,574,231,040/1,225,425,940.98
  6. Step 6: Final answer
    x = 1,007,862,036.60

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.