Home / 163,775,107.20-245,662,660.80-77,681,665.20

Finding the Fourth Proportional to 163,775,107.20, 245,662,660.80 and 77,681,665.20

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Solution

The fourth proportional to 163,775,107.20, 245,662,660.80 and 77,681,665.20 is: 116,522,497.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,775,107.20 : 245,662,660.80 = 77,681,665.20 : x
  2. Step 2: Convert to fraction form
    163,775,107.20/245,662,660.80 = 77,681,665.20/x
  3. Step 3: Cross multiply
    163,775,107.20x = 245,662,660.80 × 77,681,665.20
  4. Step 4: Simplify right side
    163,775,107.20x = 19,083,484,568,406,764
  5. Step 5: Solve for x
    x = 19,083,484,568,406,764/163,775,107.20
  6. Step 6: Final answer
    x = 116,522,497.80

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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.