Home / 28,986,674.72-40,002,108.09-15,934,483.76

Finding the Fourth Proportional to 28,986,674.72, 40,002,108.09 and 15,934,483.76

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Solution

The fourth proportional to 28,986,674.72, 40,002,108.09 and 15,934,483.76 is: 21,989,860.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,986,674.72 : 40,002,108.09 = 15,934,483.76 : x
  2. Step 2: Convert to fraction form
    28,986,674.72/40,002,108.09 = 15,934,483.76/x
  3. Step 3: Cross multiply
    28,986,674.72x = 40,002,108.09 × 15,934,483.76
  4. Step 4: Simplify right side
    28,986,674.72x = 637,412,941,725,869.62
  5. Step 5: Solve for x
    x = 637,412,941,725,869.62/28,986,674.72
  6. Step 6: Final answer
    x = 21,989,860.79

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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.