Home / 12,547,215.30-18,778,832.55-8,768,079.30

Finding the Fourth Proportional to 12,547,215.30, 18,778,832.55 and 8,768,079.30

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Solution

The fourth proportional to 12,547,215.30, 18,778,832.55 and 8,768,079.30 is: 13,122,775.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547,215.30 : 18,778,832.55 = 8,768,079.30 : x
  2. Step 2: Convert to fraction form
    12,547,215.30/18,778,832.55 = 8,768,079.30/x
  3. Step 3: Cross multiply
    12,547,215.30x = 18,778,832.55 × 8,768,079.30
  4. Step 4: Simplify right side
    12,547,215.30x = 164,654,292,959,821.25
  5. Step 5: Solve for x
    x = 164,654,292,959,821.25/12,547,215.30
  6. Step 6: Final answer
    x = 13,122,775.77

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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.