Home / 20,806,815.90-31,210,223.85-7,345,004.70

Finding the Fourth Proportional to 20,806,815.90, 31,210,223.85 and 7,345,004.70

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Solution

The fourth proportional to 20,806,815.90, 31,210,223.85 and 7,345,004.70 is: 11,017,507.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,806,815.90 : 31,210,223.85 = 7,345,004.70 : x
  2. Step 2: Convert to fraction form
    20,806,815.90/31,210,223.85 = 7,345,004.70/x
  3. Step 3: Cross multiply
    20,806,815.90x = 31,210,223.85 × 7,345,004.70
  4. Step 4: Simplify right side
    20,806,815.90x = 229,239,240,866,302.12
  5. Step 5: Solve for x
    x = 229,239,240,866,302.12/20,806,815.90
  6. Step 6: Final answer
    x = 11,017,507.05

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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.