Home / 20,245,088.76-27,938,222.48-11,077,731.52

Finding the Fourth Proportional to 20,245,088.76, 27,938,222.48 and 11,077,731.52

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Solution

The fourth proportional to 20,245,088.76, 27,938,222.48 and 11,077,731.52 is: 15,287,269.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,245,088.76 : 27,938,222.48 = 11,077,731.52 : x
  2. Step 2: Convert to fraction form
    20,245,088.76/27,938,222.48 = 11,077,731.52/x
  3. Step 3: Cross multiply
    20,245,088.76x = 27,938,222.48 × 11,077,731.52
  4. Step 4: Simplify right side
    20,245,088.76x = 309,492,127,779,468.56
  5. Step 5: Solve for x
    x = 309,492,127,779,468.56/20,245,088.76
  6. Step 6: Final answer
    x = 15,287,269.49

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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.