Home / 119,668,915.19-179,135,209.44-78,080,240.76

Finding the Fourth Proportional to 119,668,915.19, 179,135,209.44 and 78,080,240.76

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Solution

The fourth proportional to 119,668,915.19, 179,135,209.44 and 78,080,240.76 is: 116,880,146.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,668,915.19 : 179,135,209.44 = 78,080,240.76 : x
  2. Step 2: Convert to fraction form
    119,668,915.19/179,135,209.44 = 78,080,240.76/x
  3. Step 3: Cross multiply
    119,668,915.19x = 179,135,209.44 × 78,080,240.76
  4. Step 4: Simplify right side
    119,668,915.19x = 13,986,920,281,668,226
  5. Step 5: Solve for x
    x = 13,986,920,281,668,226/119,668,915.19
  6. Step 6: Final answer
    x = 116,880,146.03

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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.