Home / 388,386,176.80-582,579,265.20-349,419,085.60

Finding the Fourth Proportional to 388,386,176.80, 582,579,265.20 and 349,419,085.60

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Solution

The fourth proportional to 388,386,176.80, 582,579,265.20 and 349,419,085.60 is: 524,128,628.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,386,176.80 : 582,579,265.20 = 349,419,085.60 : x
  2. Step 2: Convert to fraction form
    388,386,176.80/582,579,265.20 = 349,419,085.60/x
  3. Step 3: Cross multiply
    388,386,176.80x = 582,579,265.20 × 349,419,085.60
  4. Step 4: Simplify right side
    388,386,176.80x = 203,564,314,135,703,936
  5. Step 5: Solve for x
    x = 203,564,314,135,703,936/388,386,176.80
  6. Step 6: Final answer
    x = 524,128,628.40

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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.