Home / 13,271,233.59-18,312,122.79-7,687,494.54

Finding the Fourth Proportional to 13,271,233.59, 18,312,122.79 and 7,687,494.54

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Solution

The fourth proportional to 13,271,233.59, 18,312,122.79 and 7,687,494.54 is: 10,607,479.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,271,233.59 : 18,312,122.79 = 7,687,494.54 : x
  2. Step 2: Convert to fraction form
    13,271,233.59/18,312,122.79 = 7,687,494.54/x
  3. Step 3: Cross multiply
    13,271,233.59x = 18,312,122.79 × 7,687,494.54
  4. Step 4: Simplify right side
    13,271,233.59x = 140,774,343,963,934.56
  5. Step 5: Solve for x
    x = 140,774,343,963,934.56/13,271,233.59
  6. Step 6: Final answer
    x = 10,607,479.93

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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.