Home / 518,679,301.32-715,783,114.80-283,729,964.04

Finding the Fourth Proportional to 518,679,301.32, 715,783,114.80 and 283,729,964.04

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Solution

The fourth proportional to 518,679,301.32, 715,783,114.80 and 283,729,964.04 is: 391,550,456.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,679,301.32 : 715,783,114.80 = 283,729,964.04 : x
  2. Step 2: Convert to fraction form
    518,679,301.32/715,783,114.80 = 283,729,964.04/x
  3. Step 3: Cross multiply
    518,679,301.32x = 715,783,114.80 × 283,729,964.04
  4. Step 4: Simplify right side
    518,679,301.32x = 203,089,117,422,643,200
  5. Step 5: Solve for x
    x = 203,089,117,422,643,200/518,679,301.32
  6. Step 6: Final answer
    x = 391,550,456.91

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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.