Home / 418,698,657.76-628,141,657.26-127,588,564

Finding the Fourth Proportional to 418,698,657.76, 628,141,657.26 and 127,588,564

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Solution

The fourth proportional to 418,698,657.76, 628,141,657.26 and 127,588,564 is: 191,411,389.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,698,657.76 : 628,141,657.26 = 127,588,564 : x
  2. Step 2: Convert to fraction form
    418,698,657.76/628,141,657.26 = 127,588,564/x
  3. Step 3: Cross multiply
    418,698,657.76x = 628,141,657.26 × 127,588,564
  4. Step 4: Simplify right side
    418,698,657.76x = 80,143,692,038,383,568
  5. Step 5: Solve for x
    x = 80,143,692,038,383,568/418,698,657.76
  6. Step 6: Final answer
    x = 191,411,389.92

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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.