Home / 20,512,985.80-30,732,153.90-16,705,856.20

Finding the Fourth Proportional to 20,512,985.80, 30,732,153.90 and 16,705,856.20

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Solution

The fourth proportional to 20,512,985.80, 30,732,153.90 and 16,705,856.20 is: 25,028,386.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512,985.80 : 30,732,153.90 = 16,705,856.20 : x
  2. Step 2: Convert to fraction form
    20,512,985.80/30,732,153.90 = 16,705,856.20/x
  3. Step 3: Cross multiply
    20,512,985.80x = 30,732,153.90 × 16,705,856.20
  4. Step 4: Simplify right side
    20,512,985.80x = 513,406,943,769,669.12
  5. Step 5: Solve for x
    x = 513,406,943,769,669.12/20,512,985.80
  6. Step 6: Final answer
    x = 25,028,386.84

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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.