Home / 1,178,485,881.22-1,768,029,085.99-349,469,807.68

Finding the Fourth Proportional to 1,178,485,881.22, 1,768,029,085.99 and 349,469,807.68

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Solution

The fourth proportional to 1,178,485,881.22, 1,768,029,085.99 and 349,469,807.68 is: 524,293,752.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,485,881.22 : 1,768,029,085.99 = 349,469,807.68 : x
  2. Step 2: Convert to fraction form
    1,178,485,881.22/1,768,029,085.99 = 349,469,807.68/x
  3. Step 3: Cross multiply
    1,178,485,881.22x = 1,768,029,085.99 × 349,469,807.68
  4. Step 4: Simplify right side
    1,178,485,881.22x = 617,872,784,653,571,456
  5. Step 5: Solve for x
    x = 617,872,784,653,571,456/1,178,485,881.22
  6. Step 6: Final answer
    x = 524,293,752.26

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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.