Home / 668,409,742.67-922,359,157.20-371,028,562.06

Finding the Fourth Proportional to 668,409,742.67, 922,359,157.20 and 371,028,562.06

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Solution

The fourth proportional to 668,409,742.67, 922,359,157.20 and 371,028,562.06 is: 511,993,721.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,409,742.67 : 922,359,157.20 = 371,028,562.06 : x
  2. Step 2: Convert to fraction form
    668,409,742.67/922,359,157.20 = 371,028,562.06/x
  3. Step 3: Cross multiply
    668,409,742.67x = 922,359,157.20 × 371,028,562.06
  4. Step 4: Simplify right side
    668,409,742.67x = 342,221,591,798,789,504
  5. Step 5: Solve for x
    x = 342,221,591,798,789,504/668,409,742.67
  6. Step 6: Final answer
    x = 511,993,721.74

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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.