Home / 38,480,931.79-53,103,029.81-20,839,691.18

Finding the Fourth Proportional to 38,480,931.79, 53,103,029.81 and 20,839,691.18

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Solution

The fourth proportional to 38,480,931.79, 53,103,029.81 and 20,839,691.18 is: 28,758,418.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,480,931.79 : 53,103,029.81 = 20,839,691.18 : x
  2. Step 2: Convert to fraction form
    38,480,931.79/53,103,029.81 = 20,839,691.18/x
  3. Step 3: Cross multiply
    38,480,931.79x = 53,103,029.81 × 20,839,691.18
  4. Step 4: Simplify right side
    38,480,931.79x = 1,106,650,742,147,590.88
  5. Step 5: Solve for x
    x = 1,106,650,742,147,590.88/38,480,931.79
  6. Step 6: Final answer
    x = 28,758,418.54

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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.