Home / 122,039,451.17-168,415,679.70-66,285,410.28

Finding the Fourth Proportional to 122,039,451.17, 168,415,679.70 and 66,285,410.28

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Solution

The fourth proportional to 122,039,451.17, 168,415,679.70 and 66,285,410.28 is: 91,474,538.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,039,451.17 : 168,415,679.70 = 66,285,410.28 : x
  2. Step 2: Convert to fraction form
    122,039,451.17/168,415,679.70 = 66,285,410.28/x
  3. Step 3: Cross multiply
    122,039,451.17x = 168,415,679.70 × 66,285,410.28
  4. Step 4: Simplify right side
    122,039,451.17x = 11,163,502,426,629,084
  5. Step 5: Solve for x
    x = 11,163,502,426,629,084/122,039,451.17
  6. Step 6: Final answer
    x = 91,474,538.10

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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.