Home / 20,657,145.60-30,986,884.80-6,280,682.40

Finding the Fourth Proportional to 20,657,145.60, 30,986,884.80 and 6,280,682.40

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Solution

The fourth proportional to 20,657,145.60, 30,986,884.80 and 6,280,682.40 is: 9,421,378.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,657,145.60 : 30,986,884.80 = 6,280,682.40 : x
  2. Step 2: Convert to fraction form
    20,657,145.60/30,986,884.80 = 6,280,682.40/x
  3. Step 3: Cross multiply
    20,657,145.60x = 30,986,884.80 × 6,280,682.40
  4. Step 4: Simplify right side
    20,657,145.60x = 194,618,781,994,187.53
  5. Step 5: Solve for x
    x = 194,618,781,994,187.53/20,657,145.60
  6. Step 6: Final answer
    x = 9,421,378.24

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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.