Home / 288,732,872.70-433,099,309.05-212,205,368.70

Finding the Fourth Proportional to 288,732,872.70, 433,099,309.05 and 212,205,368.70

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Solution

The fourth proportional to 288,732,872.70, 433,099,309.05 and 212,205,368.70 is: 318,308,053.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,732,872.70 : 433,099,309.05 = 212,205,368.70 : x
  2. Step 2: Convert to fraction form
    288,732,872.70/433,099,309.05 = 212,205,368.70/x
  3. Step 3: Cross multiply
    288,732,872.70x = 433,099,309.05 × 212,205,368.70
  4. Step 4: Simplify right side
    288,732,872.70x = 91,905,998,560,670,496
  5. Step 5: Solve for x
    x = 91,905,998,560,670,496/288,732,872.70
  6. Step 6: Final answer
    x = 318,308,053.05

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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.