Home / 15,359,799.94-21,196,042.32-8,390,365.54

Finding the Fourth Proportional to 15,359,799.94, 21,196,042.32 and 8,390,365.54

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Solution

The fourth proportional to 15,359,799.94, 21,196,042.32 and 8,390,365.54 is: 11,578,441.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,359,799.94 : 21,196,042.32 = 8,390,365.54 : x
  2. Step 2: Convert to fraction form
    15,359,799.94/21,196,042.32 = 8,390,365.54/x
  3. Step 3: Cross multiply
    15,359,799.94x = 21,196,042.32 × 8,390,365.54
  4. Step 4: Simplify right side
    15,359,799.94x = 177,842,543,066,109.62
  5. Step 5: Solve for x
    x = 177,842,543,066,109.62/15,359,799.94
  6. Step 6: Final answer
    x = 11,578,441.37

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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.