Home / 863,136,000.80-1,294,704,001.20-378,461,808.80

Finding the Fourth Proportional to 863,136,000.80, 1,294,704,001.20 and 378,461,808.80

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Solution

The fourth proportional to 863,136,000.80, 1,294,704,001.20 and 378,461,808.80 is: 567,692,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,136,000.80 : 1,294,704,001.20 = 378,461,808.80 : x
  2. Step 2: Convert to fraction form
    863,136,000.80/1,294,704,001.20 = 378,461,808.80/x
  3. Step 3: Cross multiply
    863,136,000.80x = 1,294,704,001.20 × 378,461,808.80
  4. Step 4: Simplify right side
    863,136,000.80x = 489,996,018,154,749,376
  5. Step 5: Solve for x
    x = 489,996,018,154,749,376/863,136,000.80
  6. Step 6: Final answer
    x = 567,692,713.20

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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.