Home / 128,323,207.40-192,484,811.10-123,788,244.20

Finding the Fourth Proportional to 128,323,207.40, 192,484,811.10 and 123,788,244.20

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Solution

The fourth proportional to 128,323,207.40, 192,484,811.10 and 123,788,244.20 is: 185,682,366.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,323,207.40 : 192,484,811.10 = 123,788,244.20 : x
  2. Step 2: Convert to fraction form
    128,323,207.40/192,484,811.10 = 123,788,244.20/x
  3. Step 3: Cross multiply
    128,323,207.40x = 192,484,811.10 × 123,788,244.20
  4. Step 4: Simplify right side
    128,323,207.40x = 23,827,356,801,237,672
  5. Step 5: Solve for x
    x = 23,827,356,801,237,672/128,323,207.40
  6. Step 6: Final answer
    x = 185,682,366.30

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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.