Home / 139,829,618.64-192,976,362.36-77,117,982.24

Finding the Fourth Proportional to 139,829,618.64, 192,976,362.36 and 77,117,982.24

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Solution

The fourth proportional to 139,829,618.64, 192,976,362.36 and 77,117,982.24 is: 106,429,151.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,829,618.64 : 192,976,362.36 = 77,117,982.24 : x
  2. Step 2: Convert to fraction form
    139,829,618.64/192,976,362.36 = 77,117,982.24/x
  3. Step 3: Cross multiply
    139,829,618.64x = 192,976,362.36 × 77,117,982.24
  4. Step 4: Simplify right side
    139,829,618.64x = 14,881,947,685,218,284
  5. Step 5: Solve for x
    x = 14,881,947,685,218,284/139,829,618.64
  6. Step 6: Final answer
    x = 106,429,151.63

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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.