Home / 140,132,131.16-193,378,594.36-77,406,879.11

Finding the Fourth Proportional to 140,132,131.16, 193,378,594.36 and 77,406,879.11

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Solution

The fourth proportional to 140,132,131.16, 193,378,594.36 and 77,406,879.11 is: 106,819,423.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,132,131.16 : 193,378,594.36 = 77,406,879.11 : x
  2. Step 2: Convert to fraction form
    140,132,131.16/193,378,594.36 = 77,406,879.11/x
  3. Step 3: Cross multiply
    140,132,131.16x = 193,378,594.36 × 77,406,879.11
  4. Step 4: Simplify right side
    140,132,131.16x = 14,968,833,475,457,838
  5. Step 5: Solve for x
    x = 14,968,833,475,457,838/140,132,131.16
  6. Step 6: Final answer
    x = 106,819,423.58

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1.5x scale

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.