Home / 215,363,405.80-323,045,108.70-129,367,066.60

Finding the Fourth Proportional to 215,363,405.80, 323,045,108.70 and 129,367,066.60

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Solution

The fourth proportional to 215,363,405.80, 323,045,108.70 and 129,367,066.60 is: 194,050,599.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,363,405.80 : 323,045,108.70 = 129,367,066.60 : x
  2. Step 2: Convert to fraction form
    215,363,405.80/323,045,108.70 = 129,367,066.60/x
  3. Step 3: Cross multiply
    215,363,405.80x = 323,045,108.70 × 129,367,066.60
  4. Step 4: Simplify right side
    215,363,405.80x = 41,791,398,091,997,136
  5. Step 5: Solve for x
    x = 41,791,398,091,997,136/215,363,405.80
  6. Step 6: Final answer
    x = 194,050,599.90

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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.