Home / 656,546,660.61-984,818,776.65-213,888,811.91

Finding the Fourth Proportional to 656,546,660.61, 984,818,776.65 and 213,888,811.91

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Solution

The fourth proportional to 656,546,660.61, 984,818,776.65 and 213,888,811.91 is: 320,832,822.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,546,660.61 : 984,818,776.65 = 213,888,811.91 : x
  2. Step 2: Convert to fraction form
    656,546,660.61/984,818,776.65 = 213,888,811.91/x
  3. Step 3: Cross multiply
    656,546,660.61x = 984,818,776.65 × 213,888,811.91
  4. Step 4: Simplify right side
    656,546,660.61x = 210,641,718,079,404,064
  5. Step 5: Solve for x
    x = 210,641,718,079,404,064/656,546,660.61
  6. Step 6: Final answer
    x = 320,832,822.28

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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.