Home / 109,152,021.60-163,728,032.40-66,105,300.60

Finding the Fourth Proportional to 109,152,021.60, 163,728,032.40 and 66,105,300.60

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Solution

The fourth proportional to 109,152,021.60, 163,728,032.40 and 66,105,300.60 is: 99,157,950.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,152,021.60 : 163,728,032.40 = 66,105,300.60 : x
  2. Step 2: Convert to fraction form
    109,152,021.60/163,728,032.40 = 66,105,300.60/x
  3. Step 3: Cross multiply
    109,152,021.60x = 163,728,032.40 × 66,105,300.60
  4. Step 4: Simplify right side
    109,152,021.60x = 10,823,290,798,448,540
  5. Step 5: Solve for x
    x = 10,823,290,798,448,540/109,152,021.60
  6. Step 6: Final answer
    x = 99,157,950.90

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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.