Home / 28,986,738.40-40,002,195.90-15,934,547.44

Finding the Fourth Proportional to 28,986,738.40, 40,002,195.90 and 15,934,547.44

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Solution

The fourth proportional to 28,986,738.40, 40,002,195.90 and 15,934,547.44 is: 21,989,948.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,986,738.40 : 40,002,195.90 = 15,934,547.44 : x
  2. Step 2: Convert to fraction form
    28,986,738.40/40,002,195.90 = 15,934,547.44/x
  3. Step 3: Cross multiply
    28,986,738.40x = 40,002,195.90 × 15,934,547.44
  4. Step 4: Simplify right side
    28,986,738.40x = 637,416,888,272,723.50
  5. Step 5: Solve for x
    x = 637,416,888,272,723.50/28,986,738.40
  6. Step 6: Final answer
    x = 21,989,948.63

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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.