Home / 12,439,488.60-18,660,177.45-4,239,582.30

Finding the Fourth Proportional to 12,439,488.60, 18,660,177.45 and 4,239,582.30

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Solution

The fourth proportional to 12,439,488.60, 18,660,177.45 and 4,239,582.30 is: 6,359,695.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,439,488.60 : 18,660,177.45 = 4,239,582.30 : x
  2. Step 2: Convert to fraction form
    12,439,488.60/18,660,177.45 = 4,239,582.30/x
  3. Step 3: Cross multiply
    12,439,488.60x = 18,660,177.45 × 4,239,582.30
  4. Step 4: Simplify right side
    12,439,488.60x = 79,111,358,031,879.12
  5. Step 5: Solve for x
    x = 79,111,358,031,879.12/12,439,488.60
  6. Step 6: Final answer
    x = 6,359,695.37

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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.