Home / 99,265,934.40-149,020,207.20-56,165,121.60

Finding the Fourth Proportional to 99,265,934.40, 149,020,207.20 and 56,165,121.60

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Solution

The fourth proportional to 99,265,934.40, 149,020,207.20 and 56,165,121.60 is: 84,316,317.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,265,934.40 : 149,020,207.20 = 56,165,121.60 : x
  2. Step 2: Convert to fraction form
    99,265,934.40/149,020,207.20 = 56,165,121.60/x
  3. Step 3: Cross multiply
    99,265,934.40x = 149,020,207.20 × 56,165,121.60
  4. Step 4: Simplify right side
    99,265,934.40x = 8,369,738,058,245,195
  5. Step 5: Solve for x
    x = 8,369,738,058,245,195/99,265,934.40
  6. Step 6: Final answer
    x = 84,316,317.67

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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.