Home / 1,491,161,550.31-2,057,805,206.90-831,097,656.55

Finding the Fourth Proportional to 1,491,161,550.31, 2,057,805,206.90 and 831,097,656.55

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Solution

The fourth proportional to 1,491,161,550.31, 2,057,805,206.90 and 831,097,656.55 is: 1,146,916,029.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491,161,550.31 : 2,057,805,206.90 = 831,097,656.55 : x
  2. Step 2: Convert to fraction form
    1,491,161,550.31/2,057,805,206.90 = 831,097,656.55/x
  3. Step 3: Cross multiply
    1,491,161,550.31x = 2,057,805,206.90 × 831,097,656.55
  4. Step 4: Simplify right side
    1,491,161,550.31x = 1,710,237,085,090,977,792
  5. Step 5: Solve for x
    x = 1,710,237,085,090,977,792/1,491,161,550.31
  6. Step 6: Final answer
    x = 1,146,916,029.81

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1.5x scale

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.