Home / 160,495,807.72-221,486,778.66-90,879,301.48

Finding the Fourth Proportional to 160,495,807.72, 221,486,778.66 and 90,879,301.48

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Solution

The fourth proportional to 160,495,807.72, 221,486,778.66 and 90,879,301.48 is: 125,414,887.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,495,807.72 : 221,486,778.66 = 90,879,301.48 : x
  2. Step 2: Convert to fraction form
    160,495,807.72/221,486,778.66 = 90,879,301.48/x
  3. Step 3: Cross multiply
    160,495,807.72x = 221,486,778.66 × 90,879,301.48
  4. Step 4: Simplify right side
    160,495,807.72x = 20,128,563,731,676,172
  5. Step 5: Solve for x
    x = 20,128,563,731,676,172/160,495,807.72
  6. Step 6: Final answer
    x = 125,414,887.89

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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.