Home / 139,829,636.80-192,976,390.96-77,118,003.08

Finding the Fourth Proportional to 139,829,636.80, 192,976,390.96 and 77,118,003.08

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Solution

The fourth proportional to 139,829,636.80, 192,976,390.96 and 77,118,003.08 is: 106,429,182.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,829,636.80 : 192,976,390.96 = 77,118,003.08 : x
  2. Step 2: Convert to fraction form
    139,829,636.80/192,976,390.96 = 77,118,003.08/x
  3. Step 3: Cross multiply
    139,829,636.80x = 192,976,390.96 × 77,118,003.08
  4. Step 4: Simplify right side
    139,829,636.80x = 14,881,953,912,420,564
  5. Step 5: Solve for x
    x = 14,881,953,912,420,564/139,829,636.80
  6. Step 6: Final answer
    x = 106,429,182.35

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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.