Home / 144,042,416.82-198,778,518.45-77,962,903.02

Finding the Fourth Proportional to 144,042,416.82, 198,778,518.45 and 77,962,903.02

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Solution

The fourth proportional to 144,042,416.82, 198,778,518.45 and 77,962,903.02 is: 107,588,797.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,042,416.82 : 198,778,518.45 = 77,962,903.02 : x
  2. Step 2: Convert to fraction form
    144,042,416.82/198,778,518.45 = 77,962,903.02/x
  3. Step 3: Cross multiply
    144,042,416.82x = 198,778,518.45 × 77,962,903.02
  4. Step 4: Simplify right side
    144,042,416.82x = 15,497,350,356,376,628
  5. Step 5: Solve for x
    x = 15,497,350,356,376,628/144,042,416.82
  6. Step 6: Final answer
    x = 107,588,797.10

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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.