Home / 137,179,577.80-189,308,025.20-74,455,698.65

Finding the Fourth Proportional to 137,179,577.80, 189,308,025.20 and 74,455,698.65

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Solution

The fourth proportional to 137,179,577.80, 189,308,025.20 and 74,455,698.65 is: 102,748,976.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,179,577.80 : 189,308,025.20 = 74,455,698.65 : x
  2. Step 2: Convert to fraction form
    137,179,577.80/189,308,025.20 = 74,455,698.65/x
  3. Step 3: Cross multiply
    137,179,577.80x = 189,308,025.20 × 74,455,698.65
  4. Step 4: Simplify right side
    137,179,577.80x = 14,095,061,276,977,214
  5. Step 5: Solve for x
    x = 14,095,061,276,977,214/137,179,577.80
  6. Step 6: Final answer
    x = 102,748,976.95

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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.