Home / 126,746,939.07-189,792,977.82-87,476,369.32

Finding the Fourth Proportional to 126,746,939.07, 189,792,977.82 and 87,476,369.32

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Solution

The fourth proportional to 126,746,939.07, 189,792,977.82 and 87,476,369.32 is: 130,988,572.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,746,939.07 : 189,792,977.82 = 87,476,369.32 : x
  2. Step 2: Convert to fraction form
    126,746,939.07/189,792,977.82 = 87,476,369.32/x
  3. Step 3: Cross multiply
    126,746,939.07x = 189,792,977.82 × 87,476,369.32
  4. Step 4: Simplify right side
    126,746,939.07x = 16,602,400,622,124,886
  5. Step 5: Solve for x
    x = 16,602,400,622,124,886/126,746,939.07
  6. Step 6: Final answer
    x = 130,988,572.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.