Home / 319,488,015.70-479,232,023.55-128,149,110.10

Finding the Fourth Proportional to 319,488,015.70, 479,232,023.55 and 128,149,110.10

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Solution

The fourth proportional to 319,488,015.70, 479,232,023.55 and 128,149,110.10 is: 192,223,665.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,488,015.70 : 479,232,023.55 = 128,149,110.10 : x
  2. Step 2: Convert to fraction form
    319,488,015.70/479,232,023.55 = 128,149,110.10/x
  3. Step 3: Cross multiply
    319,488,015.70x = 479,232,023.55 × 128,149,110.10
  4. Step 4: Simplify right side
    319,488,015.70x = 61,413,157,349,354,744
  5. Step 5: Solve for x
    x = 61,413,157,349,354,744/319,488,015.70
  6. Step 6: Final answer
    x = 192,223,665.15

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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.