Home / 18,998,538.90-28,497,809.25-7,636,330.32

Finding the Fourth Proportional to 18,998,538.90, 28,497,809.25 and 7,636,330.32

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Solution

The fourth proportional to 18,998,538.90, 28,497,809.25 and 7,636,330.32 is: 11,454,495.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,998,538.90 : 28,497,809.25 = 7,636,330.32 : x
  2. Step 2: Convert to fraction form
    18,998,538.90/28,497,809.25 = 7,636,330.32/x
  3. Step 3: Cross multiply
    18,998,538.90x = 28,497,809.25 × 7,636,330.32
  4. Step 4: Simplify right side
    18,998,538.90x = 217,618,684,829,351.47
  5. Step 5: Solve for x
    x = 217,618,684,829,351.47/18,998,538.90
  6. Step 6: Final answer
    x = 11,454,495.84

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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.