Home / 39,386,864.54-54,353,948.28-21,745,801.22

Finding the Fourth Proportional to 39,386,864.54, 54,353,948.28 and 21,745,801.22

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Solution

The fourth proportional to 39,386,864.54, 54,353,948.28 and 21,745,801.22 is: 30,009,247.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,386,864.54 : 54,353,948.28 = 21,745,801.22 : x
  2. Step 2: Convert to fraction form
    39,386,864.54/54,353,948.28 = 21,745,801.22/x
  3. Step 3: Cross multiply
    39,386,864.54x = 54,353,948.28 × 21,745,801.22
  4. Step 4: Simplify right side
    39,386,864.54x = 1,181,970,154,819,040.75
  5. Step 5: Solve for x
    x = 1,181,970,154,819,040.75/39,386,864.54
  6. Step 6: Final answer
    x = 30,009,247.21

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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.