Home / 385,371,791.20-577,889,725.20-155,264,399.20

Finding the Fourth Proportional to 385,371,791.20, 577,889,725.20 and 155,264,399.20

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Solution

The fourth proportional to 385,371,791.20, 577,889,725.20 and 155,264,399.20 is: 232,828,927.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,371,791.20 : 577,889,725.20 = 155,264,399.20 : x
  2. Step 2: Convert to fraction form
    385,371,791.20/577,889,725.20 = 155,264,399.20/x
  3. Step 3: Cross multiply
    385,371,791.20x = 577,889,725.20 × 155,264,399.20
  4. Step 4: Simplify right side
    385,371,791.20x = 89,725,700,987,031,104
  5. Step 5: Solve for x
    x = 89,725,700,987,031,104/385,371,791.20
  6. Step 6: Final answer
    x = 232,828,927.90

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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.