Home / 21,387,815.40-32,081,723.10-7,007,415.60

Finding the Fourth Proportional to 21,387,815.40, 32,081,723.10 and 7,007,415.60

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Solution

The fourth proportional to 21,387,815.40, 32,081,723.10 and 7,007,415.60 is: 10,511,123.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,387,815.40 : 32,081,723.10 = 7,007,415.60 : x
  2. Step 2: Convert to fraction form
    21,387,815.40/32,081,723.10 = 7,007,415.60/x
  3. Step 3: Cross multiply
    21,387,815.40x = 32,081,723.10 × 7,007,415.60
  4. Step 4: Simplify right side
    21,387,815.40x = 224,809,966,925,820.34
  5. Step 5: Solve for x
    x = 224,809,966,925,820.34/21,387,815.40
  6. Step 6: Final answer
    x = 10,511,123.40

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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.