Home / 139,968,462.30-209,952,693.45-123,529,220.70

Finding the Fourth Proportional to 139,968,462.30, 209,952,693.45 and 123,529,220.70

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Solution

The fourth proportional to 139,968,462.30, 209,952,693.45 and 123,529,220.70 is: 185,293,831.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,462.30 : 209,952,693.45 = 123,529,220.70 : x
  2. Step 2: Convert to fraction form
    139,968,462.30/209,952,693.45 = 123,529,220.70/x
  3. Step 3: Cross multiply
    139,968,462.30x = 209,952,693.45 × 123,529,220.70
  4. Step 4: Simplify right side
    139,968,462.30x = 25,935,292,605,744,492
  5. Step 5: Solve for x
    x = 25,935,292,605,744,492/139,968,462.30
  6. Step 6: Final answer
    x = 185,293,831.05

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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.