Home / 869,077,672.20-1,303,616,508.30-409,912,648.20

Finding the Fourth Proportional to 869,077,672.20, 1,303,616,508.30 and 409,912,648.20

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Solution

The fourth proportional to 869,077,672.20, 1,303,616,508.30 and 409,912,648.20 is: 614,868,972.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,077,672.20 : 1,303,616,508.30 = 409,912,648.20 : x
  2. Step 2: Convert to fraction form
    869,077,672.20/1,303,616,508.30 = 409,912,648.20/x
  3. Step 3: Cross multiply
    869,077,672.20x = 1,303,616,508.30 × 409,912,648.20
  4. Step 4: Simplify right side
    869,077,672.20x = 534,368,895,154,490,240
  5. Step 5: Solve for x
    x = 534,368,895,154,490,240/869,077,672.20
  6. Step 6: Final answer
    x = 614,868,972.30

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1.5x scale

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.