Home / 119,863,670.40-179,879,486.40-76,837,507.20

Finding the Fourth Proportional to 119,863,670.40, 179,879,486.40 and 76,837,507.20

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Solution

The fourth proportional to 119,863,670.40, 179,879,486.40 and 76,837,507.20 is: 115,310,095.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,863,670.40 : 179,879,486.40 = 76,837,507.20 : x
  2. Step 2: Convert to fraction form
    119,863,670.40/179,879,486.40 = 76,837,507.20/x
  3. Step 3: Cross multiply
    119,863,670.40x = 179,879,486.40 × 76,837,507.20
  4. Step 4: Simplify right side
    119,863,670.40x = 13,821,491,331,392,304
  5. Step 5: Solve for x
    x = 13,821,491,331,392,304/119,863,670.40
  6. Step 6: Final answer
    x = 115,310,095.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.