Home / 134,637,361.80-185,791,549.82-78,117,729.36

Finding the Fourth Proportional to 134,637,361.80, 185,791,549.82 and 78,117,729.36

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Solution

The fourth proportional to 134,637,361.80, 185,791,549.82 and 78,117,729.36 is: 107,797,819.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,637,361.80 : 185,791,549.82 = 78,117,729.36 : x
  2. Step 2: Convert to fraction form
    134,637,361.80/185,791,549.82 = 78,117,729.36/x
  3. Step 3: Cross multiply
    134,637,361.80x = 185,791,549.82 × 78,117,729.36
  4. Step 4: Simplify right side
    134,637,361.80x = 14,513,614,005,823,128
  5. Step 5: Solve for x
    x = 14,513,614,005,823,128/134,637,361.80
  6. Step 6: Final answer
    x = 107,797,819.36

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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.