Home / 143,578,416.70-215,367,625.05-140,389,770.70

Finding the Fourth Proportional to 143,578,416.70, 215,367,625.05 and 140,389,770.70

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Solution

The fourth proportional to 143,578,416.70, 215,367,625.05 and 140,389,770.70 is: 210,584,656.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,578,416.70 : 215,367,625.05 = 140,389,770.70 : x
  2. Step 2: Convert to fraction form
    143,578,416.70/215,367,625.05 = 140,389,770.70/x
  3. Step 3: Cross multiply
    143,578,416.70x = 215,367,625.05 × 140,389,770.70
  4. Step 4: Simplify right side
    143,578,416.70x = 30,235,411,496,973,076
  5. Step 5: Solve for x
    x = 30,235,411,496,973,076/143,578,416.70
  6. Step 6: Final answer
    x = 210,584,656.05

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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.