Home / 20,970,783.60-31,456,175.40-18,955,244.40

Finding the Fourth Proportional to 20,970,783.60, 31,456,175.40 and 18,955,244.40

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Solution

The fourth proportional to 20,970,783.60, 31,456,175.40 and 18,955,244.40 is: 28,432,866.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,970,783.60 : 31,456,175.40 = 18,955,244.40 : x
  2. Step 2: Convert to fraction form
    20,970,783.60/31,456,175.40 = 18,955,244.40/x
  3. Step 3: Cross multiply
    20,970,783.60x = 31,456,175.40 × 18,955,244.40
  4. Step 4: Simplify right side
    20,970,783.60x = 596,259,492,596,267.62
  5. Step 5: Solve for x
    x = 596,259,492,596,267.62/20,970,783.60
  6. Step 6: Final answer
    x = 28,432,866.60

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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.