Home / 281,069,364.91-387,887,844.52-155,621,563.22

Finding the Fourth Proportional to 281,069,364.91, 387,887,844.52 and 155,621,563.22

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Solution

The fourth proportional to 281,069,364.91, 387,887,844.52 and 155,621,563.22 is: 214,764,468.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,069,364.91 : 387,887,844.52 = 155,621,563.22 : x
  2. Step 2: Convert to fraction form
    281,069,364.91/387,887,844.52 = 155,621,563.22/x
  3. Step 3: Cross multiply
    281,069,364.91x = 387,887,844.52 × 155,621,563.22
  4. Step 4: Simplify right side
    281,069,364.91x = 60,363,712,717,223,024
  5. Step 5: Solve for x
    x = 60,363,712,717,223,024/281,069,364.91
  6. Step 6: Final answer
    x = 214,764,468.33

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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.