Home / 941,015,999.40-1,409,508,459.90-779,772,863.40

Finding the Fourth Proportional to 941,015,999.40, 1,409,508,459.90 and 779,772,863.40

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Solution

The fourth proportional to 941,015,999.40, 1,409,508,459.90 and 779,772,863.40 is: 1,167,989,118.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    941,015,999.40 : 1,409,508,459.90 = 779,772,863.40 : x
  2. Step 2: Convert to fraction form
    941,015,999.40/1,409,508,459.90 = 779,772,863.40/x
  3. Step 3: Cross multiply
    941,015,999.40x = 1,409,508,459.90 × 779,772,863.40
  4. Step 4: Simplify right side
    941,015,999.40x = 1,099,096,447,762,747,136
  5. Step 5: Solve for x
    x = 1,099,096,447,762,747,136/941,015,999.40
  6. Step 6: Final answer
    x = 1,167,989,118.64

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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.