Home / 871,344,008.60-1,307,016,012.90-318,645,368.60

Finding the Fourth Proportional to 871,344,008.60, 1,307,016,012.90 and 318,645,368.60

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Solution

The fourth proportional to 871,344,008.60, 1,307,016,012.90 and 318,645,368.60 is: 477,968,052.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,344,008.60 : 1,307,016,012.90 = 318,645,368.60 : x
  2. Step 2: Convert to fraction form
    871,344,008.60/1,307,016,012.90 = 318,645,368.60/x
  3. Step 3: Cross multiply
    871,344,008.60x = 1,307,016,012.90 × 318,645,368.60
  4. Step 4: Simplify right side
    871,344,008.60x = 416,474,599,196,622,912
  5. Step 5: Solve for x
    x = 416,474,599,196,622,912/871,344,008.60
  6. Step 6: Final answer
    x = 477,968,052.90

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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.