Home / 1,250,859,017.88-1,725,468,267.78-780,143,118.12

Finding the Fourth Proportional to 1,250,859,017.88, 1,725,468,267.78 and 780,143,118.12

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Solution

The fourth proportional to 1,250,859,017.88, 1,725,468,267.78 and 780,143,118.12 is: 1,076,150,209.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,250,859,017.88 : 1,725,468,267.78 = 780,143,118.12 : x
  2. Step 2: Convert to fraction form
    1,250,859,017.88/1,725,468,267.78 = 780,143,118.12/x
  3. Step 3: Cross multiply
    1,250,859,017.88x = 1,725,468,267.78 × 780,143,118.12
  4. Step 4: Simplify right side
    1,250,859,017.88x = 1,346,112,194,643,004,416
  5. Step 5: Solve for x
    x = 1,346,112,194,643,004,416/1,250,859,017.88
  6. Step 6: Final answer
    x = 1,076,150,209.90

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Double scale
Find fourth proportional to 1,250,859,018.88, 1,725,468,269.16 and 780,143,119.12
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.