Home / 289,170,837.40-399,044,563.20-157,008,809.04

Finding the Fourth Proportional to 289,170,837.40, 399,044,563.20 and 157,008,809.04

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Solution

The fourth proportional to 289,170,837.40, 399,044,563.20 and 157,008,809.04 is: 216,666,079.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,170,837.40 : 399,044,563.20 = 157,008,809.04 : x
  2. Step 2: Convert to fraction form
    289,170,837.40/399,044,563.20 = 157,008,809.04/x
  3. Step 3: Cross multiply
    289,170,837.40x = 399,044,563.20 × 157,008,809.04
  4. Step 4: Simplify right side
    289,170,837.40x = 62,653,511,621,919,008
  5. Step 5: Solve for x
    x = 62,653,511,621,919,008/289,170,837.40
  6. Step 6: Final answer
    x = 216,666,079.42

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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.