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Finding the Fourth Proportional to 209,952,275.20, 314,928,412.80 and 175,940,051.20

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Solution

The fourth proportional to 209,952,275.20, 314,928,412.80 and 175,940,051.20 is: 263,910,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,952,275.20 : 314,928,412.80 = 175,940,051.20 : x
  2. Step 2: Convert to fraction form
    209,952,275.20/314,928,412.80 = 175,940,051.20/x
  3. Step 3: Cross multiply
    209,952,275.20x = 314,928,412.80 × 175,940,051.20
  4. Step 4: Simplify right side
    209,952,275.20x = 55,408,521,072,366,736
  5. Step 5: Solve for x
    x = 55,408,521,072,366,736/209,952,275.20
  6. Step 6: Final answer
    x = 263,910,076.80

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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.