Home / 12,387,846.40-18,581,769.60-3,291,347.95

Finding the Fourth Proportional to 12,387,846.40, 18,581,769.60 and 3,291,347.95

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Solution

The fourth proportional to 12,387,846.40, 18,581,769.60 and 3,291,347.95 is: 4,937,021.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387,846.40 : 18,581,769.60 = 3,291,347.95 : x
  2. Step 2: Convert to fraction form
    12,387,846.40/18,581,769.60 = 3,291,347.95/x
  3. Step 3: Cross multiply
    12,387,846.40x = 18,581,769.60 × 3,291,347.95
  4. Step 4: Simplify right side
    12,387,846.40x = 61,159,069,280,332.33
  5. Step 5: Solve for x
    x = 61,159,069,280,332.33/12,387,846.40
  6. Step 6: Final answer
    x = 4,937,021.93

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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.