Home / 268,272,003.80-402,408,005.70-186,642,666.20

Finding the Fourth Proportional to 268,272,003.80, 402,408,005.70 and 186,642,666.20

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Solution

The fourth proportional to 268,272,003.80, 402,408,005.70 and 186,642,666.20 is: 279,963,999.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,272,003.80 : 402,408,005.70 = 186,642,666.20 : x
  2. Step 2: Convert to fraction form
    268,272,003.80/402,408,005.70 = 186,642,666.20/x
  3. Step 3: Cross multiply
    268,272,003.80x = 402,408,005.70 × 186,642,666.20
  4. Step 4: Simplify right side
    268,272,003.80x = 75,106,503,084,072,784
  5. Step 5: Solve for x
    x = 75,106,503,084,072,784/268,272,003.80
  6. Step 6: Final answer
    x = 279,963,999.30

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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.