Home / 287,169,020.51-396,287,865.80-175,651,669.42

Finding the Fourth Proportional to 287,169,020.51, 396,287,865.80 and 175,651,669.42

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Solution

The fourth proportional to 287,169,020.51, 396,287,865.80 and 175,651,669.42 is: 242,396,011.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,169,020.51 : 396,287,865.80 = 175,651,669.42 : x
  2. Step 2: Convert to fraction form
    287,169,020.51/396,287,865.80 = 175,651,669.42/x
  3. Step 3: Cross multiply
    287,169,020.51x = 396,287,865.80 × 175,651,669.42
  4. Step 4: Simplify right side
    287,169,020.51x = 69,608,625,197,829,928
  5. Step 5: Solve for x
    x = 69,608,625,197,829,928/287,169,020.51
  6. Step 6: Final answer
    x = 242,396,011.50

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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.