Home / 109,152,000.30-163,728,000.45-72,642,003.60

Finding the Fourth Proportional to 109,152,000.30, 163,728,000.45 and 72,642,003.60

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Solution

The fourth proportional to 109,152,000.30, 163,728,000.45 and 72,642,003.60 is: 108,963,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,152,000.30 : 163,728,000.45 = 72,642,003.60 : x
  2. Step 2: Convert to fraction form
    109,152,000.30/163,728,000.45 = 72,642,003.60/x
  3. Step 3: Cross multiply
    109,152,000.30x = 163,728,000.45 × 72,642,003.60
  4. Step 4: Simplify right side
    109,152,000.30x = 11,893,529,998,109,700
  5. Step 5: Solve for x
    x = 11,893,529,998,109,700/109,152,000.30
  6. Step 6: Final answer
    x = 108,963,005.40

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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.