Home / 1,326,856,876.80-1,990,285,315.20-453,327,305.10

Finding the Fourth Proportional to 1,326,856,876.80, 1,990,285,315.20 and 453,327,305.10

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Solution

The fourth proportional to 1,326,856,876.80, 1,990,285,315.20 and 453,327,305.10 is: 679,990,957.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,856,876.80 : 1,990,285,315.20 = 453,327,305.10 : x
  2. Step 2: Convert to fraction form
    1,326,856,876.80/1,990,285,315.20 = 453,327,305.10/x
  3. Step 3: Cross multiply
    1,326,856,876.80x = 1,990,285,315.20 × 453,327,305.10
  4. Step 4: Simplify right side
    1,326,856,876.80x = 902,250,678,319,720,192
  5. Step 5: Solve for x
    x = 902,250,678,319,720,192/1,326,856,876.80
  6. Step 6: Final answer
    x = 679,990,957.65

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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.