Home / 128,317,590.40-192,476,385.60-60,293,142.40

Finding the Fourth Proportional to 128,317,590.40, 192,476,385.60 and 60,293,142.40

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Solution

The fourth proportional to 128,317,590.40, 192,476,385.60 and 60,293,142.40 is: 90,439,713.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,317,590.40 : 192,476,385.60 = 60,293,142.40 : x
  2. Step 2: Convert to fraction form
    128,317,590.40/192,476,385.60 = 60,293,142.40/x
  3. Step 3: Cross multiply
    128,317,590.40x = 192,476,385.60 × 60,293,142.40
  4. Step 4: Simplify right side
    128,317,590.40x = 11,605,006,125,618,108
  5. Step 5: Solve for x
    x = 11,605,006,125,618,108/128,317,590.40
  6. Step 6: Final answer
    x = 90,439,713.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.