Home / 465,408,726.80-698,113,090.20-393,745,110.80

Finding the Fourth Proportional to 465,408,726.80, 698,113,090.20 and 393,745,110.80

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Solution

The fourth proportional to 465,408,726.80, 698,113,090.20 and 393,745,110.80 is: 590,617,666.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,408,726.80 : 698,113,090.20 = 393,745,110.80 : x
  2. Step 2: Convert to fraction form
    465,408,726.80/698,113,090.20 = 393,745,110.80/x
  3. Step 3: Cross multiply
    465,408,726.80x = 698,113,090.20 × 393,745,110.80
  4. Step 4: Simplify right side
    465,408,726.80x = 274,878,616,051,729,408
  5. Step 5: Solve for x
    x = 274,878,616,051,729,408/465,408,726.80
  6. Step 6: Final answer
    x = 590,617,666.20

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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.