Home / 20,019,877.12-30,032,177.64-15,003,074.08

Finding the Fourth Proportional to 20,019,877.12, 30,032,177.64 and 15,003,074.08

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Solution

The fourth proportional to 20,019,877.12, 30,032,177.64 and 15,003,074.08 is: 22,506,381.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,019,877.12 : 30,032,177.64 = 15,003,074.08 : x
  2. Step 2: Convert to fraction form
    20,019,877.12/30,032,177.64 = 15,003,074.08/x
  3. Step 3: Cross multiply
    20,019,877.12x = 30,032,177.64 × 15,003,074.08
  4. Step 4: Simplify right side
    20,019,877.12x = 450,574,985,841,559.12
  5. Step 5: Solve for x
    x = 450,574,985,841,559.12/20,019,877.12
  6. Step 6: Final answer
    x = 22,506,381.19

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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.