Home / 13,621,646.12-20,445,766.30-11,249,655.08

Finding the Fourth Proportional to 13,621,646.12, 20,445,766.30 and 11,249,655.08

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Solution

The fourth proportional to 13,621,646.12, 20,445,766.30 and 11,249,655.08 is: 16,885,464.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621,646.12 : 20,445,766.30 = 11,249,655.08 : x
  2. Step 2: Convert to fraction form
    13,621,646.12/20,445,766.30 = 11,249,655.08/x
  3. Step 3: Cross multiply
    13,621,646.12x = 20,445,766.30 × 11,249,655.08
  4. Step 4: Simplify right side
    13,621,646.12x = 230,007,818,721,287.81
  5. Step 5: Solve for x
    x = 230,007,818,721,287.81/13,621,646.12
  6. Step 6: Final answer
    x = 16,885,464.26

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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.