Home / 640,035,072.47-883,243,697.78-361,571,535.83

Finding the Fourth Proportional to 640,035,072.47, 883,243,697.78 and 361,571,535.83

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Solution

The fourth proportional to 640,035,072.47, 883,243,697.78 and 361,571,535.83 is: 498,966,063.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,035,072.47 : 883,243,697.78 = 361,571,535.83 : x
  2. Step 2: Convert to fraction form
    640,035,072.47/883,243,697.78 = 361,571,535.83/x
  3. Step 3: Cross multiply
    640,035,072.47x = 883,243,697.78 × 361,571,535.83
  4. Step 4: Simplify right side
    640,035,072.47x = 319,355,780,316,675,072
  5. Step 5: Solve for x
    x = 319,355,780,316,675,072/640,035,072.47
  6. Step 6: Final answer
    x = 498,966,063.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.