Home / 303,551,804.18-455,259,559.15-139,632,130.10

Finding the Fourth Proportional to 303,551,804.18, 455,259,559.15 and 139,632,130.10

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Solution

The fourth proportional to 303,551,804.18, 455,259,559.15 and 139,632,130.10 is: 209,416,847.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,551,804.18 : 455,259,559.15 = 139,632,130.10 : x
  2. Step 2: Convert to fraction form
    303,551,804.18/455,259,559.15 = 139,632,130.10/x
  3. Step 3: Cross multiply
    303,551,804.18x = 455,259,559.15 × 139,632,130.10
  4. Step 4: Simplify right side
    303,551,804.18x = 63,568,861,992,501,440
  5. Step 5: Solve for x
    x = 63,568,861,992,501,440/303,551,804.18
  6. Step 6: Final answer
    x = 209,416,847.86

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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.