Home / 21,569,464.50-29,766,595.46-12,756,470.45

Finding the Fourth Proportional to 21,569,464.50, 29,766,595.46 and 12,756,470.45

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Solution

The fourth proportional to 21,569,464.50, 29,766,595.46 and 12,756,470.45 is: 17,604,363.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,569,464.50 : 29,766,595.46 = 12,756,470.45 : x
  2. Step 2: Convert to fraction form
    21,569,464.50/29,766,595.46 = 12,756,470.45/x
  3. Step 3: Cross multiply
    21,569,464.50x = 29,766,595.46 × 12,756,470.45
  4. Step 4: Simplify right side
    21,569,464.50x = 379,716,695,169,978.81
  5. Step 5: Solve for x
    x = 379,716,695,169,978.81/21,569,464.50
  6. Step 6: Final answer
    x = 17,604,363.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.