Home / 5,138,030.28-7,090,480.71-2,815,005.21

Finding the Fourth Proportional to 5,138,030.28, 7,090,480.71 and 2,815,005.21

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Solution

The fourth proportional to 5,138,030.28, 7,090,480.71 and 2,815,005.21 is: 3,884,706.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138,030.28 : 7,090,480.71 = 2,815,005.21 : x
  2. Step 2: Convert to fraction form
    5,138,030.28/7,090,480.71 = 2,815,005.21/x
  3. Step 3: Cross multiply
    5,138,030.28x = 7,090,480.71 × 2,815,005.21
  4. Step 4: Simplify right side
    5,138,030.28x = 19,959,740,140,054.50
  5. Step 5: Solve for x
    x = 19,959,740,140,054.50/5,138,030.28
  6. Step 6: Final answer
    x = 3,884,706.60

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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.