Home / 260,809,664.40-391,214,496.60-139,877,312.40

Finding the Fourth Proportional to 260,809,664.40, 391,214,496.60 and 139,877,312.40

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Solution

The fourth proportional to 260,809,664.40, 391,214,496.60 and 139,877,312.40 is: 209,815,968.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,809,664.40 : 391,214,496.60 = 139,877,312.40 : x
  2. Step 2: Convert to fraction form
    260,809,664.40/391,214,496.60 = 139,877,312.40/x
  3. Step 3: Cross multiply
    260,809,664.40x = 391,214,496.60 × 139,877,312.40
  4. Step 4: Simplify right side
    260,809,664.40x = 54,722,032,356,326,944
  5. Step 5: Solve for x
    x = 54,722,032,356,326,944/260,809,664.40
  6. Step 6: Final answer
    x = 209,815,968.60

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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.