Home / 18,821,420.20-28,231,547.10-5,358,248.20

Finding the Fourth Proportional to 18,821,420.20, 28,231,547.10 and 5,358,248.20

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Solution

The fourth proportional to 18,821,420.20, 28,231,547.10 and 5,358,248.20 is: 8,037,206.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821,420.20 : 28,231,547.10 = 5,358,248.20 : x
  2. Step 2: Convert to fraction form
    18,821,420.20/28,231,547.10 = 5,358,248.20/x
  3. Step 3: Cross multiply
    18,821,420.20x = 28,231,547.10 × 5,358,248.20
  4. Step 4: Simplify right side
    18,821,420.20x = 151,271,636,431,790.22
  5. Step 5: Solve for x
    x = 151,271,636,431,790.22/18,821,420.20
  6. Step 6: Final answer
    x = 8,037,206.27

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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.