Home / 137,609,809.54-189,901,574.49-75,730,138.18

Finding the Fourth Proportional to 137,609,809.54, 189,901,574.49 and 75,730,138.18

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Solution

The fourth proportional to 137,609,809.54, 189,901,574.49 and 75,730,138.18 is: 104,507,611.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,609,809.54 : 189,901,574.49 = 75,730,138.18 : x
  2. Step 2: Convert to fraction form
    137,609,809.54/189,901,574.49 = 75,730,138.18/x
  3. Step 3: Cross multiply
    137,609,809.54x = 189,901,574.49 × 75,730,138.18
  4. Step 4: Simplify right side
    137,609,809.54x = 14,381,272,476,727,266
  5. Step 5: Solve for x
    x = 14,381,272,476,727,266/137,609,809.54
  6. Step 6: Final answer
    x = 104,507,611.23

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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.