Home / 1,986,569,508.60-2,979,755,206.20-742,908,540.12

Finding the Fourth Proportional to 1,986,569,508.60, 2,979,755,206.20 and 742,908,540.12

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Solution

The fourth proportional to 1,986,569,508.60, 2,979,755,206.20 and 742,908,540.12 is: 1,114,325,766.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,569,508.60 : 2,979,755,206.20 = 742,908,540.12 : x
  2. Step 2: Convert to fraction form
    1,986,569,508.60/2,979,755,206.20 = 742,908,540.12/x
  3. Step 3: Cross multiply
    1,986,569,508.60x = 2,979,755,206.20 × 742,908,540.12
  4. Step 4: Simplify right side
    1,986,569,508.60x = 2,213,685,590,153,011,456
  5. Step 5: Solve for x
    x = 2,213,685,590,153,011,456/1,986,569,508.60
  6. Step 6: Final answer
    x = 1,114,325,766.39

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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.