Home / 692,717,431.41-955,587,627.59-428,314,905.09

Finding the Fourth Proportional to 692,717,431.41, 955,587,627.59 and 428,314,905.09

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Solution

The fourth proportional to 692,717,431.41, 955,587,627.59 and 428,314,905.09 is: 590,850,475.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,717,431.41 : 955,587,627.59 = 428,314,905.09 : x
  2. Step 2: Convert to fraction form
    692,717,431.41/955,587,627.59 = 428,314,905.09/x
  3. Step 3: Cross multiply
    692,717,431.41x = 955,587,627.59 × 428,314,905.09
  4. Step 4: Simplify right side
    692,717,431.41x = 409,292,424,014,247,552
  5. Step 5: Solve for x
    x = 409,292,424,014,247,552/692,717,431.41
  6. Step 6: Final answer
    x = 590,850,475.90

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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.