Home / 12,216,547.80-18,324,821.70-8,124,452.10

Finding the Fourth Proportional to 12,216,547.80, 18,324,821.70 and 8,124,452.10

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Solution

The fourth proportional to 12,216,547.80, 18,324,821.70 and 8,124,452.10 is: 12,186,678.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,216,547.80 : 18,324,821.70 = 8,124,452.10 : x
  2. Step 2: Convert to fraction form
    12,216,547.80/18,324,821.70 = 8,124,452.10/x
  3. Step 3: Cross multiply
    12,216,547.80x = 18,324,821.70 × 8,124,452.10
  4. Step 4: Simplify right side
    12,216,547.80x = 148,879,136,142,690.56
  5. Step 5: Solve for x
    x = 148,879,136,142,690.56/12,216,547.80
  6. Step 6: Final answer
    x = 12,186,678.15

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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.