Home / 20,736,019.40-31,104,029.10-20,176,147.40

Finding the Fourth Proportional to 20,736,019.40, 31,104,029.10 and 20,176,147.40

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Solution

The fourth proportional to 20,736,019.40, 31,104,029.10 and 20,176,147.40 is: 30,264,221.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,019.40 : 31,104,029.10 = 20,176,147.40 : x
  2. Step 2: Convert to fraction form
    20,736,019.40/31,104,029.10 = 20,176,147.40/x
  3. Step 3: Cross multiply
    20,736,019.40x = 31,104,029.10 × 20,176,147.40
  4. Step 4: Simplify right side
    20,736,019.40x = 627,559,475,855,489.38
  5. Step 5: Solve for x
    x = 627,559,475,855,489.38/20,736,019.40
  6. Step 6: Final answer
    x = 30,264,221.10

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1.5x scale

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.