Home / 20,838,541.64-31,241,119.57-9,903,242.75

Finding the Fourth Proportional to 20,838,541.64, 31,241,119.57 and 9,903,242.75

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Solution

The fourth proportional to 20,838,541.64, 31,241,119.57 and 9,903,242.75 is: 14,846,931.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,838,541.64 : 31,241,119.57 = 9,903,242.75 : x
  2. Step 2: Convert to fraction form
    20,838,541.64/31,241,119.57 = 9,903,242.75/x
  3. Step 3: Cross multiply
    20,838,541.64x = 31,241,119.57 × 9,903,242.75
  4. Step 4: Simplify right side
    20,838,541.64x = 309,388,390,702,521.88
  5. Step 5: Solve for x
    x = 309,388,390,702,521.88/20,838,541.64
  6. Step 6: Final answer
    x = 14,846,931.04

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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.