Home / 20,230,810.12-27,918,461.50-10,938,315.16

Finding the Fourth Proportional to 20,230,810.12, 27,918,461.50 and 10,938,315.16

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Solution

The fourth proportional to 20,230,810.12, 27,918,461.50 and 10,938,315.16 is: 15,094,844.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,230,810.12 : 27,918,461.50 = 10,938,315.16 : x
  2. Step 2: Convert to fraction form
    20,230,810.12/27,918,461.50 = 10,938,315.16/x
  3. Step 3: Cross multiply
    20,230,810.12x = 27,918,461.50 × 10,938,315.16
  4. Step 4: Simplify right side
    20,230,810.12x = 305,380,930,669,326.38
  5. Step 5: Solve for x
    x = 305,380,930,669,326.38/20,230,810.12
  6. Step 6: Final answer
    x = 15,094,844.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.