Home / 988,409,690.64-1,364,001,631.24-542,380,517.98

Finding the Fourth Proportional to 988,409,690.64, 1,364,001,631.24 and 542,380,517.98

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Solution

The fourth proportional to 988,409,690.64, 1,364,001,631.24 and 542,380,517.98 is: 748,483,061.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,409,690.64 : 1,364,001,631.24 = 542,380,517.98 : x
  2. Step 2: Convert to fraction form
    988,409,690.64/1,364,001,631.24 = 542,380,517.98/x
  3. Step 3: Cross multiply
    988,409,690.64x = 1,364,001,631.24 × 542,380,517.98
  4. Step 4: Simplify right side
    988,409,690.64x = 739,807,911,272,262,016
  5. Step 5: Solve for x
    x = 739,807,911,272,262,016/988,409,690.64
  6. Step 6: Final answer
    x = 748,483,061.51

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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.