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Finding the Fourth Proportional to 199,339,712.40, 299,009,568.60 and 199,339,712.40

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Solution

The fourth proportional to 199,339,712.40, 299,009,568.60 and 199,339,712.40 is: 299,009,568.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,339,712.40 : 299,009,568.60 = 199,339,712.40 : x
  2. Step 2: Convert to fraction form
    199,339,712.40/299,009,568.60 = 199,339,712.40/x
  3. Step 3: Cross multiply
    199,339,712.40x = 299,009,568.60 × 199,339,712.40
  4. Step 4: Simplify right side
    199,339,712.40x = 59,604,481,409,572,080
  5. Step 5: Solve for x
    x = 59,604,481,409,572,080/199,339,712.40
  6. Step 6: Final answer
    x = 299,009,568.60

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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.