Home / 387,095,387.20-580,643,080.80-384,408,001.60

Finding the Fourth Proportional to 387,095,387.20, 580,643,080.80 and 384,408,001.60

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Solution

The fourth proportional to 387,095,387.20, 580,643,080.80 and 384,408,001.60 is: 576,612,002.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,095,387.20 : 580,643,080.80 = 384,408,001.60 : x
  2. Step 2: Convert to fraction form
    387,095,387.20/580,643,080.80 = 384,408,001.60/x
  3. Step 3: Cross multiply
    387,095,387.20x = 580,643,080.80 × 384,408,001.60
  4. Step 4: Simplify right side
    387,095,387.20x = 223,203,846,333,195,328
  5. Step 5: Solve for x
    x = 223,203,846,333,195,328/387,095,387.20
  6. Step 6: Final answer
    x = 576,612,002.40

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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.