Home / 28,139,665.44-38,832,721.20-15,262,609.44

Finding the Fourth Proportional to 28,139,665.44, 38,832,721.20 and 15,262,609.44

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Solution

The fourth proportional to 28,139,665.44, 38,832,721.20 and 15,262,609.44 is: 21,062,391.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,139,665.44 : 38,832,721.20 = 15,262,609.44 : x
  2. Step 2: Convert to fraction form
    28,139,665.44/38,832,721.20 = 15,262,609.44/x
  3. Step 3: Cross multiply
    28,139,665.44x = 38,832,721.20 × 15,262,609.44
  4. Step 4: Simplify right side
    28,139,665.44x = 592,688,657,168,008.12
  5. Step 5: Solve for x
    x = 592,688,657,168,008.12/28,139,665.44
  6. Step 6: Final answer
    x = 21,062,391.75

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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.