Home / 12,547,205.80-18,778,818.30-8,768,069.80

Finding the Fourth Proportional to 12,547,205.80, 18,778,818.30 and 8,768,069.80

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Solution

The fourth proportional to 12,547,205.80, 18,778,818.30 and 8,768,069.80 is: 13,122,761.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547,205.80 : 18,778,818.30 = 8,768,069.80 : x
  2. Step 2: Convert to fraction form
    12,547,205.80/18,778,818.30 = 8,768,069.80/x
  3. Step 3: Cross multiply
    12,547,205.80x = 18,778,818.30 × 8,768,069.80
  4. Step 4: Simplify right side
    12,547,205.80x = 164,653,989,615,917.38
  5. Step 5: Solve for x
    x = 164,653,989,615,917.38/12,547,205.80
  6. Step 6: Final answer
    x = 13,122,761.53

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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.