Home / 13,612,985.10-20,419,477.65-5,092,214.40

Finding the Fourth Proportional to 13,612,985.10, 20,419,477.65 and 5,092,214.40

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Solution

The fourth proportional to 13,612,985.10, 20,419,477.65 and 5,092,214.40 is: 7,638,321.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,612,985.10 : 20,419,477.65 = 5,092,214.40 : x
  2. Step 2: Convert to fraction form
    13,612,985.10/20,419,477.65 = 5,092,214.40/x
  3. Step 3: Cross multiply
    13,612,985.10x = 20,419,477.65 × 5,092,214.40
  4. Step 4: Simplify right side
    13,612,985.10x = 103,980,358,129,808.16
  5. Step 5: Solve for x
    x = 103,980,358,129,808.16/13,612,985.10
  6. Step 6: Final answer
    x = 7,638,321.60

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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.