Home / 12,031,830.80-18,039,775.80-6,643,062.80

Finding the Fourth Proportional to 12,031,830.80, 18,039,775.80 and 6,643,062.80

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Solution

The fourth proportional to 12,031,830.80, 18,039,775.80 and 6,643,062.80 is: 9,960,193.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,031,830.80 : 18,039,775.80 = 6,643,062.80 : x
  2. Step 2: Convert to fraction form
    12,031,830.80/18,039,775.80 = 6,643,062.80/x
  3. Step 3: Cross multiply
    12,031,830.80x = 18,039,775.80 × 6,643,062.80
  4. Step 4: Simplify right side
    12,031,830.80x = 119,839,363,537,320.23
  5. Step 5: Solve for x
    x = 119,839,363,537,320.23/12,031,830.80
  6. Step 6: Final answer
    x = 9,960,193.55

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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.