Home / 136,594,389.69-188,511,116.64-87,057,002.61

Finding the Fourth Proportional to 136,594,389.69, 188,511,116.64 and 87,057,002.61

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Solution

The fourth proportional to 136,594,389.69, 188,511,116.64 and 87,057,002.61 is: 120,145,584.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,594,389.69 : 188,511,116.64 = 87,057,002.61 : x
  2. Step 2: Convert to fraction form
    136,594,389.69/188,511,116.64 = 87,057,002.61/x
  3. Step 3: Cross multiply
    136,594,389.69x = 188,511,116.64 × 87,057,002.61
  4. Step 4: Simplify right side
    136,594,389.69x = 16,411,212,773,016,030
  5. Step 5: Solve for x
    x = 16,411,212,773,016,030/136,594,389.69
  6. Step 6: Final answer
    x = 120,145,584.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.