Home / 139,743,522.96-192,838,192.20-77,019,430.86

Finding the Fourth Proportional to 139,743,522.96, 192,838,192.20 and 77,019,430.86

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Solution

The fourth proportional to 139,743,522.96, 192,838,192.20 and 77,019,430.86 is: 106,282,477.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,743,522.96 : 192,838,192.20 = 77,019,430.86 : x
  2. Step 2: Convert to fraction form
    139,743,522.96/192,838,192.20 = 77,019,430.86/x
  3. Step 3: Cross multiply
    139,743,522.96x = 192,838,192.20 × 77,019,430.86
  4. Step 4: Simplify right side
    139,743,522.96x = 14,852,287,811,315,290
  5. Step 5: Solve for x
    x = 14,852,287,811,315,290/139,743,522.96
  6. Step 6: Final answer
    x = 106,282,477.33

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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.