Home / 631,152,004.20-946,728,006.30-355,652,989.80

Finding the Fourth Proportional to 631,152,004.20, 946,728,006.30 and 355,652,989.80

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Solution

The fourth proportional to 631,152,004.20, 946,728,006.30 and 355,652,989.80 is: 533,479,484.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,152,004.20 : 946,728,006.30 = 355,652,989.80 : x
  2. Step 2: Convert to fraction form
    631,152,004.20/946,728,006.30 = 355,652,989.80/x
  3. Step 3: Cross multiply
    631,152,004.20x = 946,728,006.30 × 355,652,989.80
  4. Step 4: Simplify right side
    631,152,004.20x = 336,706,645,967,988,224
  5. Step 5: Solve for x
    x = 336,706,645,967,988,224/631,152,004.20
  6. Step 6: Final answer
    x = 533,479,484.70

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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.