Home / 15,300,056.88-21,114,456.84-8,331,116.40

Finding the Fourth Proportional to 15,300,056.88, 21,114,456.84 and 8,331,116.40

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Solution

The fourth proportional to 15,300,056.88, 21,114,456.84 and 8,331,116.40 is: 11,497,146.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,300,056.88 : 21,114,456.84 = 8,331,116.40 : x
  2. Step 2: Convert to fraction form
    15,300,056.88/21,114,456.84 = 8,331,116.40/x
  3. Step 3: Cross multiply
    15,300,056.88x = 21,114,456.84 × 8,331,116.40
  4. Step 4: Simplify right side
    15,300,056.88x = 175,906,997,656,816.19
  5. Step 5: Solve for x
    x = 175,906,997,656,816.19/15,300,056.88
  6. Step 6: Final answer
    x = 11,497,146.65

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1.5x scale

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.