Home / 651,950,384.80-977,972,816.40-392,607,176.80

Finding the Fourth Proportional to 651,950,384.80, 977,972,816.40 and 392,607,176.80

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Solution

The fourth proportional to 651,950,384.80, 977,972,816.40 and 392,607,176.80 is: 588,939,212.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,950,384.80 : 977,972,816.40 = 392,607,176.80 : x
  2. Step 2: Convert to fraction form
    651,950,384.80/977,972,816.40 = 392,607,176.80/x
  3. Step 3: Cross multiply
    651,950,384.80x = 977,972,816.40 × 392,607,176.80
  4. Step 4: Simplify right side
    651,950,384.80x = 383,959,146,433,948,736
  5. Step 5: Solve for x
    x = 383,959,146,433,948,736/651,950,384.80
  6. Step 6: Final answer
    x = 588,939,212.84

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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.