Home / 20,341,903.88-28,072,129.29-11,049,655.16

Finding the Fourth Proportional to 20,341,903.88, 28,072,129.29 and 11,049,655.16

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Solution

The fourth proportional to 20,341,903.88, 28,072,129.29 and 11,049,655.16 is: 15,248,688.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,341,903.88 : 28,072,129.29 = 11,049,655.16 : x
  2. Step 2: Convert to fraction form
    20,341,903.88/28,072,129.29 = 11,049,655.16/x
  3. Step 3: Cross multiply
    20,341,903.88x = 28,072,129.29 × 11,049,655.16
  4. Step 4: Simplify right side
    20,341,903.88x = 310,187,348,261,435.62
  5. Step 5: Solve for x
    x = 310,187,348,261,435.62/20,341,903.88
  6. Step 6: Final answer
    x = 15,248,688.13

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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.