Home / 128,649,688.20-192,955,869.90-37,763,800.20

Finding the Fourth Proportional to 128,649,688.20, 192,955,869.90 and 37,763,800.20

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Solution

The fourth proportional to 128,649,688.20, 192,955,869.90 and 37,763,800.20 is: 56,640,222.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,649,688.20 : 192,955,869.90 = 37,763,800.20 : x
  2. Step 2: Convert to fraction form
    128,649,688.20/192,955,869.90 = 37,763,800.20/x
  3. Step 3: Cross multiply
    128,649,688.20x = 192,955,869.90 × 37,763,800.20
  4. Step 4: Simplify right side
    128,649,688.20x = 7,286,746,918,320,795
  5. Step 5: Solve for x
    x = 7,286,746,918,320,795/128,649,688.20
  6. Step 6: Final answer
    x = 56,640,222.14

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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.