Home / 122,284,935.54-168,688,892.25-72,690,033.06

Finding the Fourth Proportional to 122,284,935.54, 168,688,892.25 and 72,690,033.06

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Solution

The fourth proportional to 122,284,935.54, 168,688,892.25 and 72,690,033.06 is: 100,274,012.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,284,935.54 : 168,688,892.25 = 72,690,033.06 : x
  2. Step 2: Convert to fraction form
    122,284,935.54/168,688,892.25 = 72,690,033.06/x
  3. Step 3: Cross multiply
    122,284,935.54x = 168,688,892.25 × 72,690,033.06
  4. Step 4: Simplify right side
    122,284,935.54x = 12,262,001,154,507,278
  5. Step 5: Solve for x
    x = 12,262,001,154,507,278/122,284,935.54
  6. Step 6: Final answer
    x = 100,274,012.50

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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.