Home / 189,915,189.54-262,077,330.90-105,146,085.15

Finding the Fourth Proportional to 189,915,189.54, 262,077,330.90 and 105,146,085.15

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Solution

The fourth proportional to 189,915,189.54, 262,077,330.90 and 105,146,085.15 is: 145,098,480.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,915,189.54 : 262,077,330.90 = 105,146,085.15 : x
  2. Step 2: Convert to fraction form
    189,915,189.54/262,077,330.90 = 105,146,085.15/x
  3. Step 3: Cross multiply
    189,915,189.54x = 262,077,330.90 × 105,146,085.15
  4. Step 4: Simplify right side
    189,915,189.54x = 27,556,405,350,696,128
  5. Step 5: Solve for x
    x = 27,556,405,350,696,128/189,915,189.54
  6. Step 6: Final answer
    x = 145,098,480.10

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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.