Home / 325,058,009.40-487,587,014.10-187,308,502.20

Finding the Fourth Proportional to 325,058,009.40, 487,587,014.10 and 187,308,502.20

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Solution

The fourth proportional to 325,058,009.40, 487,587,014.10 and 187,308,502.20 is: 280,962,753.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,058,009.40 : 487,587,014.10 = 187,308,502.20 : x
  2. Step 2: Convert to fraction form
    325,058,009.40/487,587,014.10 = 187,308,502.20/x
  3. Step 3: Cross multiply
    325,058,009.40x = 487,587,014.10 × 187,308,502.20
  4. Step 4: Simplify right side
    325,058,009.40x = 91,329,193,303,241,280
  5. Step 5: Solve for x
    x = 91,329,193,303,241,280/325,058,009.40
  6. Step 6: Final answer
    x = 280,962,753.30

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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.