Home / 42,912,678.30-64,362,954.04-13,762,728.94

Finding the Fourth Proportional to 42,912,678.30, 64,362,954.04 and 13,762,728.94

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Solution

The fourth proportional to 42,912,678.30, 64,362,954.04 and 13,762,728.94 is: 20,642,148.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,912,678.30 : 64,362,954.04 = 13,762,728.94 : x
  2. Step 2: Convert to fraction form
    42,912,678.30/64,362,954.04 = 13,762,728.94/x
  3. Step 3: Cross multiply
    42,912,678.30x = 64,362,954.04 × 13,762,728.94
  4. Step 4: Simplify right side
    42,912,678.30x = 885,809,890,230,197.88
  5. Step 5: Solve for x
    x = 885,809,890,230,197.88/42,912,678.30
  6. Step 6: Final answer
    x = 20,642,148.78

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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.