Home / 219,592,106.60-329,164,211.10-128,668,893.80

Finding the Fourth Proportional to 219,592,106.60, 329,164,211.10 and 128,668,893.80

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Solution

The fourth proportional to 219,592,106.60, 329,164,211.10 and 128,668,893.80 is: 192,872,119.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,592,106.60 : 329,164,211.10 = 128,668,893.80 : x
  2. Step 2: Convert to fraction form
    219,592,106.60/329,164,211.10 = 128,668,893.80/x
  3. Step 3: Cross multiply
    219,592,106.60x = 329,164,211.10 × 128,668,893.80
  4. Step 4: Simplify right side
    219,592,106.60x = 42,353,194,920,786,680
  5. Step 5: Solve for x
    x = 42,353,194,920,786,680/219,592,106.60
  6. Step 6: Final answer
    x = 192,872,119.02

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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.