Home / 31,404,949.47-43,332,423.93-18,349,683.35

Finding the Fourth Proportional to 31,404,949.47, 43,332,423.93 and 18,349,683.35

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Solution

The fourth proportional to 31,404,949.47, 43,332,423.93 and 18,349,683.35 is: 25,318,819.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,404,949.47 : 43,332,423.93 = 18,349,683.35 : x
  2. Step 2: Convert to fraction form
    31,404,949.47/43,332,423.93 = 18,349,683.35/x
  3. Step 3: Cross multiply
    31,404,949.47x = 43,332,423.93 × 18,349,683.35
  4. Step 4: Simplify right side
    31,404,949.47x = 795,136,257,686,800.38
  5. Step 5: Solve for x
    x = 795,136,257,686,800.38/31,404,949.47
  6. Step 6: Final answer
    x = 25,318,819.84

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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.