Home / 1,261,899,428.80-1,892,849,143.20-744,577,700.80

Finding the Fourth Proportional to 1,261,899,428.80, 1,892,849,143.20 and 744,577,700.80

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Solution

The fourth proportional to 1,261,899,428.80, 1,892,849,143.20 and 744,577,700.80 is: 1,116,866,551.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,899,428.80 : 1,892,849,143.20 = 744,577,700.80 : x
  2. Step 2: Convert to fraction form
    1,261,899,428.80/1,892,849,143.20 = 744,577,700.80/x
  3. Step 3: Cross multiply
    1,261,899,428.80x = 1,892,849,143.20 × 744,577,700.80
  4. Step 4: Simplify right side
    1,261,899,428.80x = 1,409,373,263,005,105,920
  5. Step 5: Solve for x
    x = 1,409,373,263,005,105,920/1,261,899,428.80
  6. Step 6: Final answer
    x = 1,116,866,551.20

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Double scale
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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.