Home / 1,345,378,909.20-2,018,068,363.80-619,784,797.20

Finding the Fourth Proportional to 1,345,378,909.20, 2,018,068,363.80 and 619,784,797.20

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Solution

The fourth proportional to 1,345,378,909.20, 2,018,068,363.80 and 619,784,797.20 is: 929,677,195.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,378,909.20 : 2,018,068,363.80 = 619,784,797.20 : x
  2. Step 2: Convert to fraction form
    1,345,378,909.20/2,018,068,363.80 = 619,784,797.20/x
  3. Step 3: Cross multiply
    1,345,378,909.20x = 2,018,068,363.80 × 619,784,797.20
  4. Step 4: Simplify right side
    1,345,378,909.20x = 1,250,768,091,593,518,848
  5. Step 5: Solve for x
    x = 1,250,768,091,593,518,848/1,345,378,909.20
  6. Step 6: Final answer
    x = 929,677,195.80

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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.