Home / 813,987,772.19-1,221,483,871.38-377,207,043.11

Finding the Fourth Proportional to 813,987,772.19, 1,221,483,871.38 and 377,207,043.11

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Solution

The fourth proportional to 813,987,772.19, 1,221,483,871.38 and 377,207,043.11 is: 566,043,293.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,987,772.19 : 1,221,483,871.38 = 377,207,043.11 : x
  2. Step 2: Convert to fraction form
    813,987,772.19/1,221,483,871.38 = 377,207,043.11/x
  3. Step 3: Cross multiply
    813,987,772.19x = 1,221,483,871.38 × 377,207,043.11
  4. Step 4: Simplify right side
    813,987,772.19x = 460,752,319,323,697,984
  5. Step 5: Solve for x
    x = 460,752,319,323,697,984/813,987,772.19
  6. Step 6: Final answer
    x = 566,043,293.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.