Home / 746,808,907.20-1,120,213,360.80-402,435,139.20

Finding the Fourth Proportional to 746,808,907.20, 1,120,213,360.80 and 402,435,139.20

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Solution

The fourth proportional to 746,808,907.20, 1,120,213,360.80 and 402,435,139.20 is: 603,652,708.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,808,907.20 : 1,120,213,360.80 = 402,435,139.20 : x
  2. Step 2: Convert to fraction form
    746,808,907.20/1,120,213,360.80 = 402,435,139.20/x
  3. Step 3: Cross multiply
    746,808,907.20x = 1,120,213,360.80 × 402,435,139.20
  4. Step 4: Simplify right side
    746,808,907.20x = 450,813,219,787,247,808
  5. Step 5: Solve for x
    x = 450,813,219,787,247,808/746,808,907.20
  6. Step 6: Final answer
    x = 603,652,708.80

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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.