Home / 2,910,720,101.20-4,366,080,151.80-840,509,400.40

Finding the Fourth Proportional to 2,910,720,101.20, 4,366,080,151.80 and 840,509,400.40

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Solution

The fourth proportional to 2,910,720,101.20, 4,366,080,151.80 and 840,509,400.40 is: 1,260,764,100.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910,720,101.20 : 4,366,080,151.80 = 840,509,400.40 : x
  2. Step 2: Convert to fraction form
    2,910,720,101.20/4,366,080,151.80 = 840,509,400.40/x
  3. Step 3: Cross multiply
    2,910,720,101.20x = 4,366,080,151.80 × 840,509,400.40
  4. Step 4: Simplify right side
    2,910,720,101.20x = 3,669,731,410,487,758,848
  5. Step 5: Solve for x
    x = 3,669,731,410,487,758,848/2,910,720,101.20
  6. Step 6: Final answer
    x = 1,260,764,100.60

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1.5x scale

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.