Home / 988,409,685.94-1,364,001,624.86-542,380,513.30

Finding the Fourth Proportional to 988,409,685.94, 1,364,001,624.86 and 542,380,513.30

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Solution

The fourth proportional to 988,409,685.94, 1,364,001,624.86 and 542,380,513.30 is: 748,483,055.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,409,685.94 : 1,364,001,624.86 = 542,380,513.30 : x
  2. Step 2: Convert to fraction form
    988,409,685.94/1,364,001,624.86 = 542,380,513.30/x
  3. Step 3: Cross multiply
    988,409,685.94x = 1,364,001,624.86 × 542,380,513.30
  4. Step 4: Simplify right side
    988,409,685.94x = 739,807,901,427,478,912
  5. Step 5: Solve for x
    x = 739,807,901,427,478,912/988,409,685.94
  6. Step 6: Final answer
    x = 748,483,055.11

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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.