Home / 988,409,687.94-1,364,001,627.62-542,380,515.30

Finding the Fourth Proportional to 988,409,687.94, 1,364,001,627.62 and 542,380,515.30

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Solution

The fourth proportional to 988,409,687.94, 1,364,001,627.62 and 542,380,515.30 is: 748,483,057.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,409,687.94 : 1,364,001,627.62 = 542,380,515.30 : x
  2. Step 2: Convert to fraction form
    988,409,687.94/1,364,001,627.62 = 542,380,515.30/x
  3. Step 3: Cross multiply
    988,409,687.94x = 1,364,001,627.62 × 542,380,515.30
  4. Step 4: Simplify right side
    988,409,687.94x = 739,807,905,658,574,208
  5. Step 5: Solve for x
    x = 739,807,905,658,574,208/988,409,687.94
  6. Step 6: Final answer
    x = 748,483,057.87

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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.