Home / 142,484,066.66-196,628,390.51-77,293,970.66

Finding the Fourth Proportional to 142,484,066.66, 196,628,390.51 and 77,293,970.66

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Solution

The fourth proportional to 142,484,066.66, 196,628,390.51 and 77,293,970.66 is: 106,665,884.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,484,066.66 : 196,628,390.51 = 77,293,970.66 : x
  2. Step 2: Convert to fraction form
    142,484,066.66/196,628,390.51 = 77,293,970.66/x
  3. Step 3: Cross multiply
    142,484,066.66x = 196,628,390.51 × 77,293,970.66
  4. Step 4: Simplify right side
    142,484,066.66x = 15,198,189,045,633,350
  5. Step 5: Solve for x
    x = 15,198,189,045,633,350/142,484,066.66
  6. Step 6: Final answer
    x = 106,665,884.84

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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.