Home / 1,346,455,139.56-1,857,966,479.94-781,829,651.32

Finding the Fourth Proportional to 1,346,455,139.56, 1,857,966,479.94 and 781,829,651.32

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Solution

The fourth proportional to 1,346,455,139.56, 1,857,966,479.94 and 781,829,651.32 is: 1,078,842,690.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346,455,139.56 : 1,857,966,479.94 = 781,829,651.32 : x
  2. Step 2: Convert to fraction form
    1,346,455,139.56/1,857,966,479.94 = 781,829,651.32/x
  3. Step 3: Cross multiply
    1,346,455,139.56x = 1,857,966,479.94 × 781,829,651.32
  4. Step 4: Simplify right side
    1,346,455,139.56x = 1,452,613,285,175,738,112
  5. Step 5: Solve for x
    x = 1,452,613,285,175,738,112/1,346,455,139.56
  6. Step 6: Final answer
    x = 1,078,842,690.33

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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.