Home / 281,010,686.40-421,516,029.60-178,848,043.20

Finding the Fourth Proportional to 281,010,686.40, 421,516,029.60 and 178,848,043.20

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Solution

The fourth proportional to 281,010,686.40, 421,516,029.60 and 178,848,043.20 is: 268,272,064.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,010,686.40 : 421,516,029.60 = 178,848,043.20 : x
  2. Step 2: Convert to fraction form
    281,010,686.40/421,516,029.60 = 178,848,043.20/x
  3. Step 3: Cross multiply
    281,010,686.40x = 421,516,029.60 × 178,848,043.20
  4. Step 4: Simplify right side
    281,010,686.40x = 75,387,317,071,393,280
  5. Step 5: Solve for x
    x = 75,387,317,071,393,280/281,010,686.40
  6. Step 6: Final answer
    x = 268,272,064.80

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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.