Home / 208,249,717.20-312,374,575.80-154,502,005.20

Finding the Fourth Proportional to 208,249,717.20, 312,374,575.80 and 154,502,005.20

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Solution

The fourth proportional to 208,249,717.20, 312,374,575.80 and 154,502,005.20 is: 231,753,007.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,249,717.20 : 312,374,575.80 = 154,502,005.20 : x
  2. Step 2: Convert to fraction form
    208,249,717.20/312,374,575.80 = 154,502,005.20/x
  3. Step 3: Cross multiply
    208,249,717.20x = 312,374,575.80 × 154,502,005.20
  4. Step 4: Simplify right side
    208,249,717.20x = 48,262,498,334,599,392
  5. Step 5: Solve for x
    x = 48,262,498,334,599,392/208,249,717.20
  6. Step 6: Final answer
    x = 231,753,007.80

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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.