Home / 20,730,098.10-31,095,147.15-18,338,613.60

Finding the Fourth Proportional to 20,730,098.10, 31,095,147.15 and 18,338,613.60

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Solution

The fourth proportional to 20,730,098.10, 31,095,147.15 and 18,338,613.60 is: 27,507,920.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,730,098.10 : 31,095,147.15 = 18,338,613.60 : x
  2. Step 2: Convert to fraction form
    20,730,098.10/31,095,147.15 = 18,338,613.60/x
  3. Step 3: Cross multiply
    20,730,098.10x = 31,095,147.15 × 18,338,613.60
  4. Step 4: Simplify right side
    20,730,098.10x = 570,241,888,418,991.25
  5. Step 5: Solve for x
    x = 570,241,888,418,991.25/20,730,098.10
  6. Step 6: Final answer
    x = 27,507,920.40

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1.5x scale

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.