Home / 7,121,044.80-9,827,030.40-3,857,942.40

Finding the Fourth Proportional to 7,121,044.80, 9,827,030.40 and 3,857,942.40

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Solution

The fourth proportional to 7,121,044.80, 9,827,030.40 and 3,857,942.40 is: 5,323,954.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121,044.80 : 9,827,030.40 = 3,857,942.40 : x
  2. Step 2: Convert to fraction form
    7,121,044.80/9,827,030.40 = 3,857,942.40/x
  3. Step 3: Cross multiply
    7,121,044.80x = 9,827,030.40 × 3,857,942.40
  4. Step 4: Simplify right side
    7,121,044.80x = 37,912,117,246,248.96
  5. Step 5: Solve for x
    x = 37,912,117,246,248.96/7,121,044.80
  6. Step 6: Final answer
    x = 5,323,954.32

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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.