Home / 442,828,999.05-663,986,514.79-209,657,753.51

Finding the Fourth Proportional to 442,828,999.05, 663,986,514.79 and 209,657,753.51

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Solution

The fourth proportional to 442,828,999.05, 663,986,514.79 and 209,657,753.51 is: 314,364,961.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,828,999.05 : 663,986,514.79 = 209,657,753.51 : x
  2. Step 2: Convert to fraction form
    442,828,999.05/663,986,514.79 = 209,657,753.51/x
  3. Step 3: Cross multiply
    442,828,999.05x = 663,986,514.79 × 209,657,753.51
  4. Step 4: Simplify right side
    442,828,999.05x = 139,209,921,050,757,488
  5. Step 5: Solve for x
    x = 139,209,921,050,757,488/442,828,999.05
  6. Step 6: Final answer
    x = 314,364,961.08

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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.