Home / 20,369,225.93-28,102,649.29-11,547,731.79

Finding the Fourth Proportional to 20,369,225.93, 28,102,649.29 and 11,547,731.79

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Solution

The fourth proportional to 20,369,225.93, 28,102,649.29 and 11,547,731.79 is: 15,931,968.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,369,225.93 : 28,102,649.29 = 11,547,731.79 : x
  2. Step 2: Convert to fraction form
    20,369,225.93/28,102,649.29 = 11,547,731.79/x
  3. Step 3: Cross multiply
    20,369,225.93x = 28,102,649.29 × 11,547,731.79
  4. Step 4: Simplify right side
    20,369,225.93x = 324,521,856,560,484.56
  5. Step 5: Solve for x
    x = 324,521,856,560,484.56/20,369,225.93
  6. Step 6: Final answer
    x = 15,931,968.05

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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.