Home / 746,808,906.70-1,120,213,360.05-402,435,138.70

Finding the Fourth Proportional to 746,808,906.70, 1,120,213,360.05 and 402,435,138.70

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Solution

The fourth proportional to 746,808,906.70, 1,120,213,360.05 and 402,435,138.70 is: 603,652,708.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,808,906.70 : 1,120,213,360.05 = 402,435,138.70 : x
  2. Step 2: Convert to fraction form
    746,808,906.70/1,120,213,360.05 = 402,435,138.70/x
  3. Step 3: Cross multiply
    746,808,906.70x = 1,120,213,360.05 × 402,435,138.70
  4. Step 4: Simplify right side
    746,808,906.70x = 450,813,218,925,314,752
  5. Step 5: Solve for x
    x = 450,813,218,925,314,752/746,808,906.70
  6. Step 6: Final answer
    x = 603,652,708.05

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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.