Home / 238,773,872.80-358,160,809.20-77,232,138.40

Finding the Fourth Proportional to 238,773,872.80, 358,160,809.20 and 77,232,138.40

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Solution

The fourth proportional to 238,773,872.80, 358,160,809.20 and 77,232,138.40 is: 115,848,207.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,773,872.80 : 358,160,809.20 = 77,232,138.40 : x
  2. Step 2: Convert to fraction form
    238,773,872.80/358,160,809.20 = 77,232,138.40/x
  3. Step 3: Cross multiply
    238,773,872.80x = 358,160,809.20 × 77,232,138.40
  4. Step 4: Simplify right side
    238,773,872.80x = 27,661,525,185,590,396
  5. Step 5: Solve for x
    x = 27,661,525,185,590,396/238,773,872.80
  6. Step 6: Final answer
    x = 115,848,207.60

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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.