Home / 27,148,816.81-40,668,700.67-12,555,280.87

Finding the Fourth Proportional to 27,148,816.81, 40,668,700.67 and 12,555,280.87

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Solution

The fourth proportional to 27,148,816.81, 40,668,700.67 and 12,555,280.87 is: 18,807,705.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,148,816.81 : 40,668,700.67 = 12,555,280.87 : x
  2. Step 2: Convert to fraction form
    27,148,816.81/40,668,700.67 = 12,555,280.87/x
  3. Step 3: Cross multiply
    27,148,816.81x = 40,668,700.67 × 12,555,280.87
  4. Step 4: Simplify right side
    27,148,816.81x = 510,606,959,467,030.75
  5. Step 5: Solve for x
    x = 510,606,959,467,030.75/27,148,816.81
  6. Step 6: Final answer
    x = 18,807,705.80

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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.