Home / 1,422,914,563.75-1,963,683,461.51-787,835,067.68

Finding the Fourth Proportional to 1,422,914,563.75, 1,963,683,461.51 and 787,835,067.68

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Solution

The fourth proportional to 1,422,914,563.75, 1,963,683,461.51 and 787,835,067.68 is: 1,087,246,368.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,914,563.75 : 1,963,683,461.51 = 787,835,067.68 : x
  2. Step 2: Convert to fraction form
    1,422,914,563.75/1,963,683,461.51 = 787,835,067.68/x
  3. Step 3: Cross multiply
    1,422,914,563.75x = 1,963,683,461.51 × 787,835,067.68
  4. Step 4: Simplify right side
    1,422,914,563.75x = 1,547,058,692,800,827,392
  5. Step 5: Solve for x
    x = 1,547,058,692,800,827,392/1,422,914,563.75
  6. Step 6: Final answer
    x = 1,087,246,368.98

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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.