Home / 287,975,300.80-431,982,105.69-101,206,655.36

Finding the Fourth Proportional to 287,975,300.80, 431,982,105.69 and 101,206,655.36

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Solution

The fourth proportional to 287,975,300.80, 431,982,105.69 and 101,206,655.36 is: 151,816,714.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,975,300.80 : 431,982,105.69 = 101,206,655.36 : x
  2. Step 2: Convert to fraction form
    287,975,300.80/431,982,105.69 = 101,206,655.36/x
  3. Step 3: Cross multiply
    287,975,300.80x = 431,982,105.69 × 101,206,655.36
  4. Step 4: Simplify right side
    287,975,300.80x = 43,719,464,092,254,928
  5. Step 5: Solve for x
    x = 43,719,464,092,254,928/287,975,300.80
  6. Step 6: Final answer
    x = 151,816,714.74

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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.