Home / 485,969,358.26-670,390,646.92-295,179,605.19

Finding the Fourth Proportional to 485,969,358.26, 670,390,646.92 and 295,179,605.19

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Solution

The fourth proportional to 485,969,358.26, 670,390,646.92 and 295,179,605.19 is: 407,197,785.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,969,358.26 : 670,390,646.92 = 295,179,605.19 : x
  2. Step 2: Convert to fraction form
    485,969,358.26/670,390,646.92 = 295,179,605.19/x
  3. Step 3: Cross multiply
    485,969,358.26x = 670,390,646.92 × 295,179,605.19
  4. Step 4: Simplify right side
    485,969,358.26x = 197,885,646,479,438,368
  5. Step 5: Solve for x
    x = 197,885,646,479,438,368/485,969,358.26
  6. Step 6: Final answer
    x = 407,197,785.45

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.