Home / 288,732,829.20-433,099,243.80-212,205,325.20

Finding the Fourth Proportional to 288,732,829.20, 433,099,243.80 and 212,205,325.20

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Solution

The fourth proportional to 288,732,829.20, 433,099,243.80 and 212,205,325.20 is: 318,307,987.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,732,829.20 : 433,099,243.80 = 212,205,325.20 : x
  2. Step 2: Convert to fraction form
    288,732,829.20/433,099,243.80 = 212,205,325.20/x
  3. Step 3: Cross multiply
    288,732,829.20x = 433,099,243.80 × 212,205,325.20
  4. Step 4: Simplify right side
    288,732,829.20x = 91,905,965,874,453,088
  5. Step 5: Solve for x
    x = 91,905,965,874,453,088/288,732,829.20
  6. Step 6: Final answer
    x = 318,307,987.80

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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.