Home / 1,491,161,550.81-2,057,805,207.60-831,097,657.05

Finding the Fourth Proportional to 1,491,161,550.81, 2,057,805,207.60 and 831,097,657.05

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Solution

The fourth proportional to 1,491,161,550.81, 2,057,805,207.60 and 831,097,657.05 is: 1,146,916,030.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491,161,550.81 : 2,057,805,207.60 = 831,097,657.05 : x
  2. Step 2: Convert to fraction form
    1,491,161,550.81/2,057,805,207.60 = 831,097,657.05/x
  3. Step 3: Cross multiply
    1,491,161,550.81x = 2,057,805,207.60 × 831,097,657.05
  4. Step 4: Simplify right side
    1,491,161,550.81x = 1,710,237,086,701,648,640
  5. Step 5: Solve for x
    x = 1,710,237,086,701,648,640/1,491,161,550.81
  6. Step 6: Final answer
    x = 1,146,916,030.51

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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.