Home / 139,155,664.40-208,733,496.60-131,219,478.80

Finding the Fourth Proportional to 139,155,664.40, 208,733,496.60 and 131,219,478.80

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Solution

The fourth proportional to 139,155,664.40, 208,733,496.60 and 131,219,478.80 is: 196,829,218.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,155,664.40 : 208,733,496.60 = 131,219,478.80 : x
  2. Step 2: Convert to fraction form
    139,155,664.40/208,733,496.60 = 131,219,478.80/x
  3. Step 3: Cross multiply
    139,155,664.40x = 208,733,496.60 × 131,219,478.80
  4. Step 4: Simplify right side
    139,155,664.40x = 27,389,900,631,953,572
  5. Step 5: Solve for x
    x = 27,389,900,631,953,572/139,155,664.40
  6. Step 6: Final answer
    x = 196,829,218.20

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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.