Home / 120,992,728.40-181,489,092.60-99,735,088.40

Finding the Fourth Proportional to 120,992,728.40, 181,489,092.60 and 99,735,088.40

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Solution

The fourth proportional to 120,992,728.40, 181,489,092.60 and 99,735,088.40 is: 149,602,632.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,992,728.40 : 181,489,092.60 = 99,735,088.40 : x
  2. Step 2: Convert to fraction form
    120,992,728.40/181,489,092.60 = 99,735,088.40/x
  3. Step 3: Cross multiply
    120,992,728.40x = 181,489,092.60 × 99,735,088.40
  4. Step 4: Simplify right side
    120,992,728.40x = 18,100,830,694,096,788
  5. Step 5: Solve for x
    x = 18,100,830,694,096,788/120,992,728.40
  6. Step 6: Final answer
    x = 149,602,632.60

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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.