Home / 126,746,938.07-189,792,976.32-87,476,368.32

Finding the Fourth Proportional to 126,746,938.07, 189,792,976.32 and 87,476,368.32

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Solution

The fourth proportional to 126,746,938.07, 189,792,976.32 and 87,476,368.32 is: 130,988,571.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,746,938.07 : 189,792,976.32 = 87,476,368.32 : x
  2. Step 2: Convert to fraction form
    126,746,938.07/189,792,976.32 = 87,476,368.32/x
  3. Step 3: Cross multiply
    126,746,938.07x = 189,792,976.32 × 87,476,368.32
  4. Step 4: Simplify right side
    126,746,938.07x = 16,602,400,301,117,356
  5. Step 5: Solve for x
    x = 16,602,400,301,117,356/126,746,938.07
  6. Step 6: Final answer
    x = 130,988,571.04

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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.