Home / 72,007,557.52-99,370,732.21-38,967,808.20

Finding the Fourth Proportional to 72,007,557.52, 99,370,732.21 and 38,967,808.20

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Solution

The fourth proportional to 72,007,557.52, 99,370,732.21 and 38,967,808.20 is: 53,775,739.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,007,557.52 : 99,370,732.21 = 38,967,808.20 : x
  2. Step 2: Convert to fraction form
    72,007,557.52/99,370,732.21 = 38,967,808.20/x
  3. Step 3: Cross multiply
    72,007,557.52x = 99,370,732.21 × 38,967,808.20
  4. Step 4: Simplify right side
    72,007,557.52x = 3,872,259,633,760,937
  5. Step 5: Solve for x
    x = 3,872,259,633,760,937/72,007,557.52
  6. Step 6: Final answer
    x = 53,775,739.20

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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.