Home / 134,829,361.51-186,011,578.79-78,304,485.22

Finding the Fourth Proportional to 134,829,361.51, 186,011,578.79 and 78,304,485.22

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Solution

The fourth proportional to 134,829,361.51, 186,011,578.79 and 78,304,485.22 is: 108,029,443.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,829,361.51 : 186,011,578.79 = 78,304,485.22 : x
  2. Step 2: Convert to fraction form
    134,829,361.51/186,011,578.79 = 78,304,485.22/x
  3. Step 3: Cross multiply
    134,829,361.51x = 186,011,578.79 × 78,304,485.22
  4. Step 4: Simplify right side
    134,829,361.51x = 14,565,540,921,547,510
  5. Step 5: Solve for x
    x = 14,565,540,921,547,510/134,829,361.51
  6. Step 6: Final answer
    x = 108,029,443.73

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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.