Home / 212,050,378.80-317,888,944.20-143,671,345.20

Finding the Fourth Proportional to 212,050,378.80, 317,888,944.20 and 143,671,345.20

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Solution

The fourth proportional to 212,050,378.80, 317,888,944.20 and 143,671,345.20 is: 215,380,573.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,050,378.80 : 317,888,944.20 = 143,671,345.20 : x
  2. Step 2: Convert to fraction form
    212,050,378.80/317,888,944.20 = 143,671,345.20/x
  3. Step 3: Cross multiply
    212,050,378.80x = 317,888,944.20 × 143,671,345.20
  4. Step 4: Simplify right side
    212,050,378.80x = 45,671,532,237,421,736
  5. Step 5: Solve for x
    x = 45,671,532,237,421,736/212,050,378.80
  6. Step 6: Final answer
    x = 215,380,573.69

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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.