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Finding the Fourth Proportional to 268,078,848.51, 369,978,766.98 and 162,290,551.62

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Solution

The fourth proportional to 268,078,848.51, 369,978,766.98 and 162,290,551.62 is: 223,979,096.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,078,848.51 : 369,978,766.98 = 162,290,551.62 : x
  2. Step 2: Convert to fraction form
    268,078,848.51/369,978,766.98 = 162,290,551.62/x
  3. Step 3: Cross multiply
    268,078,848.51x = 369,978,766.98 × 162,290,551.62
  4. Step 4: Simplify right side
    268,078,848.51x = 60,044,058,180,871,648
  5. Step 5: Solve for x
    x = 60,044,058,180,871,648/268,078,848.51
  6. Step 6: Final answer
    x = 223,979,096.13

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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.