Home / 384,747,338.40-577,498,921.20-190,877,661.60

Finding the Fourth Proportional to 384,747,338.40, 577,498,921.20 and 190,877,661.60

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Solution

The fourth proportional to 384,747,338.40, 577,498,921.20 and 190,877,661.60 is: 286,503,979.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,747,338.40 : 577,498,921.20 = 190,877,661.60 : x
  2. Step 2: Convert to fraction form
    384,747,338.40/577,498,921.20 = 190,877,661.60/x
  3. Step 3: Cross multiply
    384,747,338.40x = 577,498,921.20 × 190,877,661.60
  4. Step 4: Simplify right side
    384,747,338.40x = 110,231,643,655,178,672
  5. Step 5: Solve for x
    x = 110,231,643,655,178,672/384,747,338.40
  6. Step 6: Final answer
    x = 286,503,979.76

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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.