Home / 445,991,773.88-615,486,133.68-305,158,387.52

Finding the Fourth Proportional to 445,991,773.88, 615,486,133.68 and 305,158,387.52

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Solution

The fourth proportional to 445,991,773.88, 615,486,133.68 and 305,158,387.52 is: 421,130,538.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,991,773.88 : 615,486,133.68 = 305,158,387.52 : x
  2. Step 2: Convert to fraction form
    445,991,773.88/615,486,133.68 = 305,158,387.52/x
  3. Step 3: Cross multiply
    445,991,773.88x = 615,486,133.68 × 305,158,387.52
  4. Step 4: Simplify right side
    445,991,773.88x = 187,820,756,094,707,936
  5. Step 5: Solve for x
    x = 187,820,756,094,707,936/445,991,773.88
  6. Step 6: Final answer
    x = 421,130,538.94

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Why These Related Problems?

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