Home / 239,589,781,126.90-359,406,764,683.42-78,242,033,522.15

Finding the Fourth Proportional to 239,589,781,126.90, 359,406,764,683.42 and 78,242,033,522.15

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Solution

The fourth proportional to 239,589,781,126.90, 359,406,764,683.42 and 78,242,033,522.15 is: 117,370,265,118.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,589,781,126.90 : 359,406,764,683.42 = 78,242,033,522.15 : x
  2. Step 2: Convert to fraction form
    239,589,781,126.90/359,406,764,683.42 = 78,242,033,522.15/x
  3. Step 3: Cross multiply
    239,589,781,126.90x = 359,406,764,683.42 × 78,242,033,522.15
  4. Step 4: Simplify right side
    239,589,781,126.90x = 28,120,716,130,447,622,406,144
  5. Step 5: Solve for x
    x = 28,120,716,130,447,622,406,144/239,589,781,126.90
  6. Step 6: Final answer
    x = 117,370,265,118.08

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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.