Home / 128,310,521.40-192,465,782.10-37,443,295.80

Finding the Fourth Proportional to 128,310,521.40, 192,465,782.10 and 37,443,295.80

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Solution

The fourth proportional to 128,310,521.40, 192,465,782.10 and 37,443,295.80 is: 56,164,943.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,310,521.40 : 192,465,782.10 = 37,443,295.80 : x
  2. Step 2: Convert to fraction form
    128,310,521.40/192,465,782.10 = 37,443,295.80/x
  3. Step 3: Cross multiply
    128,310,521.40x = 192,465,782.10 × 37,443,295.80
  4. Step 4: Simplify right side
    128,310,521.40x = 7,206,553,210,548,644
  5. Step 5: Solve for x
    x = 7,206,553,210,548,644/128,310,521.40
  6. Step 6: Final answer
    x = 56,164,943.70

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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.