Home / 668,247,663.78-922,191,601.77-370,908,983.07

Finding the Fourth Proportional to 668,247,663.78, 922,191,601.77 and 370,908,983.07

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Solution

The fourth proportional to 668,247,663.78, 922,191,601.77 and 370,908,983.07 is: 511,859,850.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,247,663.78 : 922,191,601.77 = 370,908,983.07 : x
  2. Step 2: Convert to fraction form
    668,247,663.78/922,191,601.77 = 370,908,983.07/x
  3. Step 3: Cross multiply
    668,247,663.78x = 922,191,601.77 × 370,908,983.07
  4. Step 4: Simplify right side
    668,247,663.78x = 342,049,149,208,205,120
  5. Step 5: Solve for x
    x = 342,049,149,208,205,120/668,247,663.78
  6. Step 6: Final answer
    x = 511,859,850.39

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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.