Home / 393,939,332.40-590,908,998.60-121,393,642.80

Finding the Fourth Proportional to 393,939,332.40, 590,908,998.60 and 121,393,642.80

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Solution

The fourth proportional to 393,939,332.40, 590,908,998.60 and 121,393,642.80 is: 182,090,464.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,939,332.40 : 590,908,998.60 = 121,393,642.80 : x
  2. Step 2: Convert to fraction form
    393,939,332.40/590,908,998.60 = 121,393,642.80/x
  3. Step 3: Cross multiply
    393,939,332.40x = 590,908,998.60 × 121,393,642.80
  4. Step 4: Simplify right side
    393,939,332.40x = 71,732,595,903,354,104
  5. Step 5: Solve for x
    x = 71,732,595,903,354,104/393,939,332.40
  6. Step 6: Final answer
    x = 182,090,464.20

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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.