Home / 100,622,411.68-138,863,848.16-56,583,268.96

Finding the Fourth Proportional to 100,622,411.68, 138,863,848.16 and 56,583,268.96

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Solution

The fourth proportional to 100,622,411.68, 138,863,848.16 and 56,583,268.96 is: 78,087,677.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,622,411.68 : 138,863,848.16 = 56,583,268.96 : x
  2. Step 2: Convert to fraction form
    100,622,411.68/138,863,848.16 = 56,583,268.96/x
  3. Step 3: Cross multiply
    100,622,411.68x = 138,863,848.16 × 56,583,268.96
  4. Step 4: Simplify right side
    100,622,411.68x = 7,857,370,469,257,881
  5. Step 5: Solve for x
    x = 7,857,370,469,257,881/100,622,411.68
  6. Step 6: Final answer
    x = 78,087,677.86

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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.