Home / 21,294,416.40-31,941,624.60-15,625,712.40

Finding the Fourth Proportional to 21,294,416.40, 31,941,624.60 and 15,625,712.40

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Solution

The fourth proportional to 21,294,416.40, 31,941,624.60 and 15,625,712.40 is: 23,438,568.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,294,416.40 : 31,941,624.60 = 15,625,712.40 : x
  2. Step 2: Convert to fraction form
    21,294,416.40/31,941,624.60 = 15,625,712.40/x
  3. Step 3: Cross multiply
    21,294,416.40x = 31,941,624.60 × 15,625,712.40
  4. Step 4: Simplify right side
    21,294,416.40x = 499,110,639,588,365.06
  5. Step 5: Solve for x
    x = 499,110,639,588,365.06/21,294,416.40
  6. Step 6: Final answer
    x = 23,438,568.60

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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.