Home / 375,908,745.21-518,711,995.80-208,652,055.96

Finding the Fourth Proportional to 375,908,745.21, 518,711,995.80 and 208,652,055.96

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Solution

The fourth proportional to 375,908,745.21, 518,711,995.80 and 208,652,055.96 is: 287,916,484.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,908,745.21 : 518,711,995.80 = 208,652,055.96 : x
  2. Step 2: Convert to fraction form
    375,908,745.21/518,711,995.80 = 208,652,055.96/x
  3. Step 3: Cross multiply
    375,908,745.21x = 518,711,995.80 × 208,652,055.96
  4. Step 4: Simplify right side
    375,908,745.21x = 108,230,324,374,784,896
  5. Step 5: Solve for x
    x = 108,230,324,374,784,896/375,908,745.21
  6. Step 6: Final answer
    x = 287,916,484.40

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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.