Home / 501,930,989.22-692,449,879.74-313,432,026.60

Finding the Fourth Proportional to 501,930,989.22, 692,449,879.74 and 313,432,026.60

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Solution

The fourth proportional to 501,930,989.22, 692,449,879.74 and 313,432,026.60 is: 432,402,011.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,930,989.22 : 692,449,879.74 = 313,432,026.60 : x
  2. Step 2: Convert to fraction form
    501,930,989.22/692,449,879.74 = 313,432,026.60/x
  3. Step 3: Cross multiply
    501,930,989.22x = 692,449,879.74 × 313,432,026.60
  4. Step 4: Simplify right side
    501,930,989.22x = 217,035,969,125,834,496
  5. Step 5: Solve for x
    x = 217,035,969,125,834,496/501,930,989.22
  6. Step 6: Final answer
    x = 432,402,011.01

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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.