Home / 84,768,039.80-127,152,059.70-20,942,631.80

Finding the Fourth Proportional to 84,768,039.80, 127,152,059.70 and 20,942,631.80

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Solution

The fourth proportional to 84,768,039.80, 127,152,059.70 and 20,942,631.80 is: 31,413,947.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,768,039.80 : 127,152,059.70 = 20,942,631.80 : x
  2. Step 2: Convert to fraction form
    84,768,039.80/127,152,059.70 = 20,942,631.80/x
  3. Step 3: Cross multiply
    84,768,039.80x = 127,152,059.70 × 20,942,631.80
  4. Step 4: Simplify right side
    84,768,039.80x = 2,662,898,768,908,718.50
  5. Step 5: Solve for x
    x = 2,662,898,768,908,718.50/84,768,039.80
  6. Step 6: Final answer
    x = 31,413,947.70

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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.