Home / 38,479,513.16-53,101,756.80-20,838,552.64

Finding the Fourth Proportional to 38,479,513.16, 53,101,756.80 and 20,838,552.64

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Solution

The fourth proportional to 38,479,513.16, 53,101,756.80 and 20,838,552.64 is: 28,757,218.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,479,513.16 : 53,101,756.80 = 20,838,552.64 : x
  2. Step 2: Convert to fraction form
    38,479,513.16/53,101,756.80 = 20,838,552.64/x
  3. Step 3: Cross multiply
    38,479,513.16x = 53,101,756.80 × 20,838,552.64
  4. Step 4: Simplify right side
    38,479,513.16x = 1,106,563,754,353,277.88
  5. Step 5: Solve for x
    x = 1,106,563,754,353,277.88/38,479,513.16
  6. Step 6: Final answer
    x = 28,757,218.15

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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.