Home / 1,210,146,067.80-1,815,219,101.70-881,077,800.60

Finding the Fourth Proportional to 1,210,146,067.80, 1,815,219,101.70 and 881,077,800.60

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Solution

The fourth proportional to 1,210,146,067.80, 1,815,219,101.70 and 881,077,800.60 is: 1,321,616,700.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,146,067.80 : 1,815,219,101.70 = 881,077,800.60 : x
  2. Step 2: Convert to fraction form
    1,210,146,067.80/1,815,219,101.70 = 881,077,800.60/x
  3. Step 3: Cross multiply
    1,210,146,067.80x = 1,815,219,101.70 × 881,077,800.60
  4. Step 4: Simplify right side
    1,210,146,067.80x = 1,599,349,253,732,943,872
  5. Step 5: Solve for x
    x = 1,599,349,253,732,943,872/1,210,146,067.80
  6. Step 6: Final answer
    x = 1,321,616,700.90

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Double scale
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Similar ratio
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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.