Home / 987,968,141.42-1,481,793,188.52-288,296,001.86

Finding the Fourth Proportional to 987,968,141.42, 1,481,793,188.52 and 288,296,001.86

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Solution

The fourth proportional to 987,968,141.42, 1,481,793,188.52 and 288,296,001.86 is: 432,397,598.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,968,141.42 : 1,481,793,188.52 = 288,296,001.86 : x
  2. Step 2: Convert to fraction form
    987,968,141.42/1,481,793,188.52 = 288,296,001.86/x
  3. Step 3: Cross multiply
    987,968,141.42x = 1,481,793,188.52 × 288,296,001.86
  4. Step 4: Simplify right side
    987,968,141.42x = 427,195,051,833,697,280
  5. Step 5: Solve for x
    x = 427,195,051,833,697,280/987,968,141.42
  6. Step 6: Final answer
    x = 432,397,598.59

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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.