Home / 20,736,031.40-31,094,715.90-7,952,287.40

Finding the Fourth Proportional to 20,736,031.40, 31,094,715.90 and 7,952,287.40

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Solution

The fourth proportional to 20,736,031.40, 31,094,715.90 and 7,952,287.40 is: 11,924,852.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,031.40 : 31,094,715.90 = 7,952,287.40 : x
  2. Step 2: Convert to fraction form
    20,736,031.40/31,094,715.90 = 7,952,287.40/x
  3. Step 3: Cross multiply
    20,736,031.40x = 31,094,715.90 × 7,952,287.40
  4. Step 4: Simplify right side
    20,736,031.40x = 247,274,117,458,149.66
  5. Step 5: Solve for x
    x = 247,274,117,458,149.66/20,736,031.40
  6. Step 6: Final answer
    x = 11,924,852.58

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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.