Home / 10,388,243.40-15,564,650.40-8,864,779.20

Finding the Fourth Proportional to 10,388,243.40, 15,564,650.40 and 8,864,779.20

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Solution

The fourth proportional to 10,388,243.40, 15,564,650.40 and 8,864,779.20 is: 13,282,052.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,388,243.40 : 15,564,650.40 = 8,864,779.20 : x
  2. Step 2: Convert to fraction form
    10,388,243.40/15,564,650.40 = 8,864,779.20/x
  3. Step 3: Cross multiply
    10,388,243.40x = 15,564,650.40 × 8,864,779.20
  4. Step 4: Simplify right side
    10,388,243.40x = 137,977,189,121,191.67
  5. Step 5: Solve for x
    x = 137,977,189,121,191.67/10,388,243.40
  6. Step 6: Final answer
    x = 13,282,052.01

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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.