Home / 20,347,928.30-30,521,892.45-18,434,740.70

Finding the Fourth Proportional to 20,347,928.30, 30,521,892.45 and 18,434,740.70

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Solution

The fourth proportional to 20,347,928.30, 30,521,892.45 and 18,434,740.70 is: 27,652,111.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,347,928.30 : 30,521,892.45 = 18,434,740.70 : x
  2. Step 2: Convert to fraction form
    20,347,928.30/30,521,892.45 = 18,434,740.70/x
  3. Step 3: Cross multiply
    20,347,928.30x = 30,521,892.45 × 18,434,740.70
  4. Step 4: Simplify right side
    20,347,928.30x = 562,663,172,989,037.69
  5. Step 5: Solve for x
    x = 562,663,172,989,037.69/20,347,928.30
  6. Step 6: Final answer
    x = 27,652,111.05

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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.