Home / 14,415,945.60-19,894,012.65-7,889,571.21

Finding the Fourth Proportional to 14,415,945.60, 19,894,012.65 and 7,889,571.21

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Solution

The fourth proportional to 14,415,945.60, 19,894,012.65 and 7,889,571.21 is: 10,887,612.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,415,945.60 : 19,894,012.65 = 7,889,571.21 : x
  2. Step 2: Convert to fraction form
    14,415,945.60/19,894,012.65 = 7,889,571.21/x
  3. Step 3: Cross multiply
    14,415,945.60x = 19,894,012.65 × 7,889,571.21
  4. Step 4: Simplify right side
    14,415,945.60x = 156,955,229,454,815.78
  5. Step 5: Solve for x
    x = 156,955,229,454,815.78/14,415,945.60
  6. Step 6: Final answer
    x = 10,887,612.50

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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.