Home / 21,287,430.40-31,931,145.60-14,568,966.40

Finding the Fourth Proportional to 21,287,430.40, 31,931,145.60 and 14,568,966.40

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Solution

The fourth proportional to 21,287,430.40, 31,931,145.60 and 14,568,966.40 is: 21,853,449.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,287,430.40 : 31,931,145.60 = 14,568,966.40 : x
  2. Step 2: Convert to fraction form
    21,287,430.40/31,931,145.60 = 14,568,966.40/x
  3. Step 3: Cross multiply
    21,287,430.40x = 31,931,145.60 × 14,568,966.40
  4. Step 4: Simplify right side
    21,287,430.40x = 465,203,787,359,907.88
  5. Step 5: Solve for x
    x = 465,203,787,359,907.88/21,287,430.40
  6. Step 6: Final answer
    x = 21,853,449.60

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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.