Home / 215,784,643.80-323,676,965.70-123,573,725.40

Finding the Fourth Proportional to 215,784,643.80, 323,676,965.70 and 123,573,725.40

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Solution

The fourth proportional to 215,784,643.80, 323,676,965.70 and 123,573,725.40 is: 185,360,588.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,784,643.80 : 323,676,965.70 = 123,573,725.40 : x
  2. Step 2: Convert to fraction form
    215,784,643.80/323,676,965.70 = 123,573,725.40/x
  3. Step 3: Cross multiply
    215,784,643.80x = 323,676,965.70 × 123,573,725.40
  4. Step 4: Simplify right side
    215,784,643.80x = 39,997,968,477,717,016
  5. Step 5: Solve for x
    x = 39,997,968,477,717,016/215,784,643.80
  6. Step 6: Final answer
    x = 185,360,588.10

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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.