Home / 442,868,018.40-664,302,027.60-136,120,273.20

Finding the Fourth Proportional to 442,868,018.40, 664,302,027.60 and 136,120,273.20

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Solution

The fourth proportional to 442,868,018.40, 664,302,027.60 and 136,120,273.20 is: 204,180,409.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,868,018.40 : 664,302,027.60 = 136,120,273.20 : x
  2. Step 2: Convert to fraction form
    442,868,018.40/664,302,027.60 = 136,120,273.20/x
  3. Step 3: Cross multiply
    442,868,018.40x = 664,302,027.60 × 136,120,273.20
  4. Step 4: Simplify right side
    442,868,018.40x = 90,424,973,484,225,936
  5. Step 5: Solve for x
    x = 90,424,973,484,225,936/442,868,018.40
  6. Step 6: Final answer
    x = 204,180,409.80

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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.