Home / 20,804,461.40-31,206,789.30-7,341,289.40

Finding the Fourth Proportional to 20,804,461.40, 31,206,789.30 and 7,341,289.40

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Solution

The fourth proportional to 20,804,461.40, 31,206,789.30 and 7,341,289.40 is: 11,011,968.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,804,461.40 : 31,206,789.30 = 7,341,289.40 : x
  2. Step 2: Convert to fraction form
    20,804,461.40/31,206,789.30 = 7,341,289.40/x
  3. Step 3: Cross multiply
    20,804,461.40x = 31,206,789.30 × 7,341,289.40
  4. Step 4: Simplify right side
    20,804,461.40x = 229,098,071,496,123.44
  5. Step 5: Solve for x
    x = 229,098,071,496,123.44/20,804,461.40
  6. Step 6: Final answer
    x = 11,011,968.40

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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.