Home / 640,035,073.72-883,243,699.50-361,571,537.08

Finding the Fourth Proportional to 640,035,073.72, 883,243,699.50 and 361,571,537.08

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Solution

The fourth proportional to 640,035,073.72, 883,243,699.50 and 361,571,537.08 is: 498,966,064.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,035,073.72 : 883,243,699.50 = 361,571,537.08 : x
  2. Step 2: Convert to fraction form
    640,035,073.72/883,243,699.50 = 361,571,537.08/x
  3. Step 3: Cross multiply
    640,035,073.72x = 883,243,699.50 × 361,571,537.08
  4. Step 4: Simplify right side
    640,035,073.72x = 319,355,782,044,440,640
  5. Step 5: Solve for x
    x = 319,355,782,044,440,640/640,035,073.72
  6. Step 6: Final answer
    x = 498,966,064.76

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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.