Home / 144,074,106.12-198,822,330.77-77,994,602.18

Finding the Fourth Proportional to 144,074,106.12, 198,822,330.77 and 77,994,602.18

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Solution

The fourth proportional to 144,074,106.12, 198,822,330.77 and 77,994,602.18 is: 107,632,585.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,074,106.12 : 198,822,330.77 = 77,994,602.18 : x
  2. Step 2: Convert to fraction form
    144,074,106.12/198,822,330.77 = 77,994,602.18/x
  3. Step 3: Cross multiply
    144,074,106.12x = 198,822,330.77 × 77,994,602.18
  4. Step 4: Simplify right side
    144,074,106.12x = 15,507,068,592,906,526
  5. Step 5: Solve for x
    x = 15,507,068,592,906,526/144,074,106.12
  6. Step 6: Final answer
    x = 107,632,585.83

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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.