Home / 38,316,145.12-52,875,530.76-20,912,615.12

Finding the Fourth Proportional to 38,316,145.12, 52,875,530.76 and 20,912,615.12

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Solution

The fourth proportional to 38,316,145.12, 52,875,530.76 and 20,912,615.12 is: 28,858,999.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,316,145.12 : 52,875,530.76 = 20,912,615.12 : x
  2. Step 2: Convert to fraction form
    38,316,145.12/52,875,530.76 = 20,912,615.12/x
  3. Step 3: Cross multiply
    38,316,145.12x = 52,875,530.76 × 20,912,615.12
  4. Step 4: Simplify right side
    38,316,145.12x = 1,105,765,624,049,601.12
  5. Step 5: Solve for x
    x = 1,105,765,624,049,601.12/38,316,145.12
  6. Step 6: Final answer
    x = 28,858,999.79

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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.