Home / 258,108,002.40-387,162,003.60-199,657,365.60

Finding the Fourth Proportional to 258,108,002.40, 387,162,003.60 and 199,657,365.60

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Solution

The fourth proportional to 258,108,002.40, 387,162,003.60 and 199,657,365.60 is: 299,486,048.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,108,002.40 : 387,162,003.60 = 199,657,365.60 : x
  2. Step 2: Convert to fraction form
    258,108,002.40/387,162,003.60 = 199,657,365.60/x
  3. Step 3: Cross multiply
    258,108,002.40x = 387,162,003.60 × 199,657,365.60
  4. Step 4: Simplify right side
    258,108,002.40x = 77,299,745,699,193,712
  5. Step 5: Solve for x
    x = 77,299,745,699,193,712/258,108,002.40
  6. Step 6: Final answer
    x = 299,486,048.40

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1.5x scale

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.