Home / 1,171,448,913.66-1,616,595,064.53-642,821,744.34

Finding the Fourth Proportional to 1,171,448,913.66, 1,616,595,064.53 and 642,821,744.34

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Solution

The fourth proportional to 1,171,448,913.66, 1,616,595,064.53 and 642,821,744.34 is: 887,091,572.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,171,448,913.66 : 1,616,595,064.53 = 642,821,744.34 : x
  2. Step 2: Convert to fraction form
    1,171,448,913.66/1,616,595,064.53 = 642,821,744.34/x
  3. Step 3: Cross multiply
    1,171,448,913.66x = 1,616,595,064.53 × 642,821,744.34
  4. Step 4: Simplify right side
    1,171,448,913.66x = 1,039,182,459,272,609,536
  5. Step 5: Solve for x
    x = 1,039,182,459,272,609,536/1,171,448,913.66
  6. Step 6: Final answer
    x = 887,091,572.80

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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.