Home / 219,592,110.60-329,164,217.10-128,668,897.80

Finding the Fourth Proportional to 219,592,110.60, 329,164,217.10 and 128,668,897.80

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Solution

The fourth proportional to 219,592,110.60, 329,164,217.10 and 128,668,897.80 is: 192,872,125.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,592,110.60 : 329,164,217.10 = 128,668,897.80 : x
  2. Step 2: Convert to fraction form
    219,592,110.60/329,164,217.10 = 128,668,897.80/x
  3. Step 3: Cross multiply
    219,592,110.60x = 329,164,217.10 × 128,668,897.80
  4. Step 4: Simplify right side
    219,592,110.60x = 42,353,197,009,456,912
  5. Step 5: Solve for x
    x = 42,353,197,009,456,912/219,592,110.60
  6. Step 6: Final answer
    x = 192,872,125.02

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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.