Home / 134,866,678.72-186,116,013.84-72,987,028.96

Finding the Fourth Proportional to 134,866,678.72, 186,116,013.84 and 72,987,028.96

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Solution

The fourth proportional to 134,866,678.72, 186,116,013.84 and 72,987,028.96 is: 100,722,098.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,866,678.72 : 186,116,013.84 = 72,987,028.96 : x
  2. Step 2: Convert to fraction form
    134,866,678.72/186,116,013.84 = 72,987,028.96/x
  3. Step 3: Cross multiply
    134,866,678.72x = 186,116,013.84 × 72,987,028.96
  4. Step 4: Simplify right side
    134,866,678.72x = 13,584,054,892,059,840
  5. Step 5: Solve for x
    x = 13,584,054,892,059,840/134,866,678.72
  6. Step 6: Final answer
    x = 100,722,098.45

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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.