Home / 1,078,033,643.60-1,617,050,620.60-260,145,947.60

Finding the Fourth Proportional to 1,078,033,643.60, 1,617,050,620.60 and 260,145,947.60

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Solution

The fourth proportional to 1,078,033,643.60, 1,617,050,620.60 and 260,145,947.60 is: 390,218,958.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,033,643.60 : 1,617,050,620.60 = 260,145,947.60 : x
  2. Step 2: Convert to fraction form
    1,078,033,643.60/1,617,050,620.60 = 260,145,947.60/x
  3. Step 3: Cross multiply
    1,078,033,643.60x = 1,617,050,620.60 × 260,145,947.60
  4. Step 4: Simplify right side
    1,078,033,643.60x = 420,669,166,013,155,072
  5. Step 5: Solve for x
    x = 420,669,166,013,155,072/1,078,033,643.60
  6. Step 6: Final answer
    x = 390,218,958.85

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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.