Home / 320,436,266.70-480,654,400.05-212,730,890.70

Finding the Fourth Proportional to 320,436,266.70, 480,654,400.05 and 212,730,890.70

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Solution

The fourth proportional to 320,436,266.70, 480,654,400.05 and 212,730,890.70 is: 319,096,336.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,436,266.70 : 480,654,400.05 = 212,730,890.70 : x
  2. Step 2: Convert to fraction form
    320,436,266.70/480,654,400.05 = 212,730,890.70/x
  3. Step 3: Cross multiply
    320,436,266.70x = 480,654,400.05 × 212,730,890.70
  4. Step 4: Simplify right side
    320,436,266.70x = 102,250,038,641,510,624
  5. Step 5: Solve for x
    x = 102,250,038,641,510,624/320,436,266.70
  6. Step 6: Final answer
    x = 319,096,336.05

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1.5x scale

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.