Home / 1,149,279,680.34-1,586,005,930.80-620,643,623.40

Finding the Fourth Proportional to 1,149,279,680.34, 1,586,005,930.80 and 620,643,623.40

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Solution

The fourth proportional to 1,149,279,680.34, 1,586,005,930.80 and 620,643,623.40 is: 856,488,185.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,279,680.34 : 1,586,005,930.80 = 620,643,623.40 : x
  2. Step 2: Convert to fraction form
    1,149,279,680.34/1,586,005,930.80 = 620,643,623.40/x
  3. Step 3: Cross multiply
    1,149,279,680.34x = 1,586,005,930.80 × 620,643,623.40
  4. Step 4: Simplify right side
    1,149,279,680.34x = 984,344,467,625,601,536
  5. Step 5: Solve for x
    x = 984,344,467,625,601,536/1,149,279,680.34
  6. Step 6: Final answer
    x = 856,488,185.13

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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.