Home / 21,270,903.40-31,906,355.10-20,798,511.40

Finding the Fourth Proportional to 21,270,903.40, 31,906,355.10 and 20,798,511.40

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Solution

The fourth proportional to 21,270,903.40, 31,906,355.10 and 20,798,511.40 is: 31,197,767.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,270,903.40 : 31,906,355.10 = 20,798,511.40 : x
  2. Step 2: Convert to fraction form
    21,270,903.40/31,906,355.10 = 20,798,511.40/x
  3. Step 3: Cross multiply
    21,270,903.40x = 31,906,355.10 × 20,798,511.40
  4. Step 4: Simplify right side
    21,270,903.40x = 663,604,690,279,798.12
  5. Step 5: Solve for x
    x = 663,604,690,279,798.12/21,270,903.40
  6. Step 6: Final answer
    x = 31,197,767.10

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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.