Home / 15,625,426.70-21,563,086.06-8,656,557.20

Finding the Fourth Proportional to 15,625,426.70, 21,563,086.06 and 8,656,557.20

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Solution

The fourth proportional to 15,625,426.70, 21,563,086.06 and 8,656,557.20 is: 11,946,047.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,625,426.70 : 21,563,086.06 = 8,656,557.20 : x
  2. Step 2: Convert to fraction form
    15,625,426.70/21,563,086.06 = 8,656,557.20/x
  3. Step 3: Cross multiply
    15,625,426.70x = 21,563,086.06 × 8,656,557.20
  4. Step 4: Simplify right side
    15,625,426.70x = 186,662,087,955,767.88
  5. Step 5: Solve for x
    x = 186,662,087,955,767.88/15,625,426.70
  6. Step 6: Final answer
    x = 11,946,047.40

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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.