Home / 154,485,144-213,191,758.08-83,922,065.28

Finding the Fourth Proportional to 154,485,144, 213,191,758.08 and 83,922,065.28

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Solution

The fourth proportional to 154,485,144, 213,191,758.08 and 83,922,065.28 is: 115,813,677.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,485,144 : 213,191,758.08 = 83,922,065.28 : x
  2. Step 2: Convert to fraction form
    154,485,144/213,191,758.08 = 83,922,065.28/x
  3. Step 3: Cross multiply
    154,485,144x = 213,191,758.08 × 83,922,065.28
  4. Step 4: Simplify right side
    154,485,144x = 17,891,492,638,747,728
  5. Step 5: Solve for x
    x = 17,891,492,638,747,728/154,485,144
  6. Step 6: Final answer
    x = 115,813,677.45

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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.