Home / 442,828,998.80-663,986,514.41-209,657,753.26

Finding the Fourth Proportional to 442,828,998.80, 663,986,514.41 and 209,657,753.26

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Solution

The fourth proportional to 442,828,998.80, 663,986,514.41 and 209,657,753.26 is: 314,364,960.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,828,998.80 : 663,986,514.41 = 209,657,753.26 : x
  2. Step 2: Convert to fraction form
    442,828,998.80/663,986,514.41 = 209,657,753.26/x
  3. Step 3: Cross multiply
    442,828,998.80x = 663,986,514.41 × 209,657,753.26
  4. Step 4: Simplify right side
    442,828,998.80x = 139,209,920,806,663,360
  5. Step 5: Solve for x
    x = 139,209,920,806,663,360/442,828,998.80
  6. Step 6: Final answer
    x = 314,364,960.71

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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.