Home / 137,172,147.04-189,454,670.58-90,338,577.40

Finding the Fourth Proportional to 137,172,147.04, 189,454,670.58 and 90,338,577.40

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Solution

The fourth proportional to 137,172,147.04, 189,454,670.58 and 90,338,577.40 is: 124,770,704.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,172,147.04 : 189,454,670.58 = 90,338,577.40 : x
  2. Step 2: Convert to fraction form
    137,172,147.04/189,454,670.58 = 90,338,577.40/x
  3. Step 3: Cross multiply
    137,172,147.04x = 189,454,670.58 × 90,338,577.40
  4. Step 4: Simplify right side
    137,172,147.04x = 17,115,065,421,982,836
  5. Step 5: Solve for x
    x = 17,115,065,421,982,836/137,172,147.04
  6. Step 6: Final answer
    x = 124,770,704.49

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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.