Home / 128,312,043.20-192,468,064.80-32,573,931.20

Finding the Fourth Proportional to 128,312,043.20, 192,468,064.80 and 32,573,931.20

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Solution

The fourth proportional to 128,312,043.20, 192,468,064.80 and 32,573,931.20 is: 48,860,896.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,312,043.20 : 192,468,064.80 = 32,573,931.20 : x
  2. Step 2: Convert to fraction form
    128,312,043.20/192,468,064.80 = 32,573,931.20/x
  3. Step 3: Cross multiply
    128,312,043.20x = 192,468,064.80 × 32,573,931.20
  4. Step 4: Simplify right side
    128,312,043.20x = 6,269,441,500,992,342
  5. Step 5: Solve for x
    x = 6,269,441,500,992,342/128,312,043.20
  6. Step 6: Final answer
    x = 48,860,896.80

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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.