Home / 315,113,825.40-472,670,738.10-200,606,004.60

Finding the Fourth Proportional to 315,113,825.40, 472,670,738.10 and 200,606,004.60

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Solution

The fourth proportional to 315,113,825.40, 472,670,738.10 and 200,606,004.60 is: 300,909,006.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,113,825.40 : 472,670,738.10 = 200,606,004.60 : x
  2. Step 2: Convert to fraction form
    315,113,825.40/472,670,738.10 = 200,606,004.60/x
  3. Step 3: Cross multiply
    315,113,825.40x = 472,670,738.10 × 200,606,004.60
  4. Step 4: Simplify right side
    315,113,825.40x = 94,820,588,261,574,000
  5. Step 5: Solve for x
    x = 94,820,588,261,574,000/315,113,825.40
  6. Step 6: Final answer
    x = 300,909,006.90

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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.