Home / 213,654,509.60-320,481,764.40-139,677,922.40

Finding the Fourth Proportional to 213,654,509.60, 320,481,764.40 and 139,677,922.40

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Solution

The fourth proportional to 213,654,509.60, 320,481,764.40 and 139,677,922.40 is: 209,516,883.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,654,509.60 : 320,481,764.40 = 139,677,922.40 : x
  2. Step 2: Convert to fraction form
    213,654,509.60/320,481,764.40 = 139,677,922.40/x
  3. Step 3: Cross multiply
    213,654,509.60x = 320,481,764.40 × 139,677,922.40
  4. Step 4: Simplify right side
    213,654,509.60x = 44,764,227,018,478,280
  5. Step 5: Solve for x
    x = 44,764,227,018,478,280/213,654,509.60
  6. Step 6: Final answer
    x = 209,516,883.60

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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.