Home / 137,099,012.93-189,146,989.80-90,081,394.29

Finding the Fourth Proportional to 137,099,012.93, 189,146,989.80 and 90,081,394.29

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Solution

The fourth proportional to 137,099,012.93, 189,146,989.80 and 90,081,394.29 is: 124,279,702.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,099,012.93 : 189,146,989.80 = 90,081,394.29 : x
  2. Step 2: Convert to fraction form
    137,099,012.93/189,146,989.80 = 90,081,394.29/x
  3. Step 3: Cross multiply
    137,099,012.93x = 189,146,989.80 × 90,081,394.29
  4. Step 4: Simplify right side
    137,099,012.93x = 17,038,624,566,940,410
  5. Step 5: Solve for x
    x = 17,038,624,566,940,410/137,099,012.93
  6. Step 6: Final answer
    x = 124,279,702.70

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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.