Home / 56,891,991.12-78,511,154.56-30,786,506.24

Finding the Fourth Proportional to 56,891,991.12, 78,511,154.56 and 30,786,506.24

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Solution

The fourth proportional to 56,891,991.12, 78,511,154.56 and 30,786,506.24 is: 42,485,490.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,891,991.12 : 78,511,154.56 = 30,786,506.24 : x
  2. Step 2: Convert to fraction form
    56,891,991.12/78,511,154.56 = 30,786,506.24/x
  3. Step 3: Cross multiply
    56,891,991.12x = 78,511,154.56 × 30,786,506.24
  4. Step 4: Simplify right side
    56,891,991.12x = 2,417,084,149,771,044.50
  5. Step 5: Solve for x
    x = 2,417,084,149,771,044.50/56,891,991.12
  6. Step 6: Final answer
    x = 42,485,490.53

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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.