Home / 268,272,001.20-402,408,001.80-186,642,663.60

Finding the Fourth Proportional to 268,272,001.20, 402,408,001.80 and 186,642,663.60

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Solution

The fourth proportional to 268,272,001.20, 402,408,001.80 and 186,642,663.60 is: 279,963,995.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,272,001.20 : 402,408,001.80 = 186,642,663.60 : x
  2. Step 2: Convert to fraction form
    268,272,001.20/402,408,001.80 = 186,642,663.60/x
  3. Step 3: Cross multiply
    268,272,001.20x = 402,408,001.80 × 186,642,663.60
  4. Step 4: Simplify right side
    268,272,001.20x = 75,106,501,309,905,600
  5. Step 5: Solve for x
    x = 75,106,501,309,905,600/268,272,001.20
  6. Step 6: Final answer
    x = 279,963,995.40

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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.