Home / 163,577,986.30-245,366,979.45-126,988,273.45

Finding the Fourth Proportional to 163,577,986.30, 245,366,979.45 and 126,988,273.45

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Solution

The fourth proportional to 163,577,986.30, 245,366,979.45 and 126,988,273.45 is: 190,482,410.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,577,986.30 : 245,366,979.45 = 126,988,273.45 : x
  2. Step 2: Convert to fraction form
    163,577,986.30/245,366,979.45 = 126,988,273.45/x
  3. Step 3: Cross multiply
    163,577,986.30x = 245,366,979.45 × 126,988,273.45
  4. Step 4: Simplify right side
    163,577,986.30x = 31,158,729,081,997,128
  5. Step 5: Solve for x
    x = 31,158,729,081,997,128/163,577,986.30
  6. Step 6: Final answer
    x = 190,482,410.18

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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.