Home / 278,837,170.99-384,793,167.53-153,386,665.72

Finding the Fourth Proportional to 278,837,170.99, 384,793,167.53 and 153,386,665.72

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Solution

The fourth proportional to 278,837,170.99, 384,793,167.53 and 153,386,665.72 is: 211,672,427.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,837,170.99 : 384,793,167.53 = 153,386,665.72 : x
  2. Step 2: Convert to fraction form
    278,837,170.99/384,793,167.53 = 153,386,665.72/x
  3. Step 3: Cross multiply
    278,837,170.99x = 384,793,167.53 × 153,386,665.72
  4. Step 4: Simplify right side
    278,837,170.99x = 59,022,140,956,573,168
  5. Step 5: Solve for x
    x = 59,022,140,956,573,168/278,837,170.99
  6. Step 6: Final answer
    x = 211,672,427.85

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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.