Home / 210,653,840.70-315,980,761.05-108,617,168.70

Finding the Fourth Proportional to 210,653,840.70, 315,980,761.05 and 108,617,168.70

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Solution

The fourth proportional to 210,653,840.70, 315,980,761.05 and 108,617,168.70 is: 162,925,753.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,653,840.70 : 315,980,761.05 = 108,617,168.70 : x
  2. Step 2: Convert to fraction form
    210,653,840.70/315,980,761.05 = 108,617,168.70/x
  3. Step 3: Cross multiply
    210,653,840.70x = 315,980,761.05 × 108,617,168.70
  4. Step 4: Simplify right side
    210,653,840.70x = 34,320,935,628,922,240
  5. Step 5: Solve for x
    x = 34,320,935,628,922,240/210,653,840.70
  6. Step 6: Final answer
    x = 162,925,753.05

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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.