Home / 31,546,827.60-47,316,742.20-25,857,128.40

Finding the Fourth Proportional to 31,546,827.60, 47,316,742.20 and 25,857,128.40

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Solution

The fourth proportional to 31,546,827.60, 47,316,742.20 and 25,857,128.40 is: 38,782,824.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,546,827.60 : 47,316,742.20 = 25,857,128.40 : x
  2. Step 2: Convert to fraction form
    31,546,827.60/47,316,742.20 = 25,857,128.40/x
  3. Step 3: Cross multiply
    31,546,827.60x = 47,316,742.20 × 25,857,128.40
  4. Step 4: Simplify right side
    31,546,827.60x = 1,223,475,078,535,098.50
  5. Step 5: Solve for x
    x = 1,223,475,078,535,098.50/31,546,827.60
  6. Step 6: Final answer
    x = 38,782,824.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.