Home / 128,309,530.60-192,464,295.90-106,768,455.40

Finding the Fourth Proportional to 128,309,530.60, 192,464,295.90 and 106,768,455.40

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Solution

The fourth proportional to 128,309,530.60, 192,464,295.90 and 106,768,455.40 is: 160,152,683.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,309,530.60 : 192,464,295.90 = 106,768,455.40 : x
  2. Step 2: Convert to fraction form
    128,309,530.60/192,464,295.90 = 106,768,455.40/x
  3. Step 3: Cross multiply
    128,309,530.60x = 192,464,295.90 × 106,768,455.40
  4. Step 4: Simplify right side
    128,309,530.60x = 20,549,115,592,891,556
  5. Step 5: Solve for x
    x = 20,549,115,592,891,556/128,309,530.60
  6. Step 6: Final answer
    x = 160,152,683.10

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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.