Home / 987,968,140.42-1,481,793,187.02-288,296,000.86

Finding the Fourth Proportional to 987,968,140.42, 1,481,793,187.02 and 288,296,000.86

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Solution

The fourth proportional to 987,968,140.42, 1,481,793,187.02 and 288,296,000.86 is: 432,397,597.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,968,140.42 : 1,481,793,187.02 = 288,296,000.86 : x
  2. Step 2: Convert to fraction form
    987,968,140.42/1,481,793,187.02 = 288,296,000.86/x
  3. Step 3: Cross multiply
    987,968,140.42x = 1,481,793,187.02 × 288,296,000.86
  4. Step 4: Simplify right side
    987,968,140.42x = 427,195,049,919,460,096
  5. Step 5: Solve for x
    x = 427,195,049,919,460,096/987,968,140.42
  6. Step 6: Final answer
    x = 432,397,597.09

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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.