Home / 126,746,931.25-189,792,966.13-87,476,361.51

Finding the Fourth Proportional to 126,746,931.25, 189,792,966.13 and 87,476,361.51

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Solution

The fourth proportional to 126,746,931.25, 189,792,966.13 and 87,476,361.51 is: 130,988,560.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,746,931.25 : 189,792,966.13 = 87,476,361.51 : x
  2. Step 2: Convert to fraction form
    126,746,931.25/189,792,966.13 = 87,476,361.51/x
  3. Step 3: Cross multiply
    126,746,931.25x = 189,792,966.13 × 87,476,361.51
  4. Step 4: Simplify right side
    126,746,931.25x = 16,602,398,116,864,882
  5. Step 5: Solve for x
    x = 16,602,398,116,864,882/126,746,931.25
  6. Step 6: Final answer
    x = 130,988,560.85

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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.