Home / 86,619,683.40-129,945,911.90-34,808,319.32

Finding the Fourth Proportional to 86,619,683.40, 129,945,911.90 and 34,808,319.32

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Solution

The fourth proportional to 86,619,683.40, 129,945,911.90 and 34,808,319.32 is: 52,219,064.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,619,683.40 : 129,945,911.90 = 34,808,319.32 : x
  2. Step 2: Convert to fraction form
    86,619,683.40/129,945,911.90 = 34,808,319.32/x
  3. Step 3: Cross multiply
    86,619,683.40x = 129,945,911.90 × 34,808,319.32
  4. Step 4: Simplify right side
    86,619,683.40x = 4,523,198,795,743,788
  5. Step 5: Solve for x
    x = 4,523,198,795,743,788/86,619,683.40
  6. Step 6: Final answer
    x = 52,219,064.05

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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.