Home / 20,853,899.65-31,240,126.32-9,908,513.02

Finding the Fourth Proportional to 20,853,899.65, 31,240,126.32 and 9,908,513.02

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Solution

The fourth proportional to 20,853,899.65, 31,240,126.32 and 9,908,513.02 is: 14,843,420.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,853,899.65 : 31,240,126.32 = 9,908,513.02 : x
  2. Step 2: Convert to fraction form
    20,853,899.65/31,240,126.32 = 9,908,513.02/x
  3. Step 3: Cross multiply
    20,853,899.65x = 31,240,126.32 × 9,908,513.02
  4. Step 4: Simplify right side
    20,853,899.65x = 309,543,198,388,164.69
  5. Step 5: Solve for x
    x = 309,543,198,388,164.69/20,853,899.65
  6. Step 6: Final answer
    x = 14,843,420.35

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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.