Home / 42,247,007,999.20-63,370,511,998.80-21,277,338,162.40

Finding the Fourth Proportional to 42,247,007,999.20, 63,370,511,998.80 and 21,277,338,162.40

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Solution

The fourth proportional to 42,247,007,999.20, 63,370,511,998.80 and 21,277,338,162.40 is: 31,916,007,243.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,247,007,999.20 : 63,370,511,998.80 = 21,277,338,162.40 : x
  2. Step 2: Convert to fraction form
    42,247,007,999.20/63,370,511,998.80 = 21,277,338,162.40/x
  3. Step 3: Cross multiply
    42,247,007,999.20x = 63,370,511,998.80 × 21,277,338,162.40
  4. Step 4: Simplify right side
    42,247,007,999.20x = 1,348,355,813,322,894,606,336
  5. Step 5: Solve for x
    x = 1,348,355,813,322,894,606,336/42,247,007,999.20
  6. Step 6: Final answer
    x = 31,916,007,243.60

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1.5x scale

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.