Home / 12,547,205.30-18,778,817.55-8,768,069.30

Finding the Fourth Proportional to 12,547,205.30, 18,778,817.55 and 8,768,069.30

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Solution

The fourth proportional to 12,547,205.30, 18,778,817.55 and 8,768,069.30 is: 13,122,760.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547,205.30 : 18,778,817.55 = 8,768,069.30 : x
  2. Step 2: Convert to fraction form
    12,547,205.30/18,778,817.55 = 8,768,069.30/x
  3. Step 3: Cross multiply
    12,547,205.30x = 18,778,817.55 × 8,768,069.30
  4. Step 4: Simplify right side
    12,547,205.30x = 164,653,973,650,456.25
  5. Step 5: Solve for x
    x = 164,653,973,650,456.25/12,547,205.30
  6. Step 6: Final answer
    x = 13,122,760.78

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1.5x scale

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.