Home / 859,858,051.20-1,289,787,076.80-514,633,977.60

Finding the Fourth Proportional to 859,858,051.20, 1,289,787,076.80 and 514,633,977.60

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Solution

The fourth proportional to 859,858,051.20, 1,289,787,076.80 and 514,633,977.60 is: 771,950,966.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,858,051.20 : 1,289,787,076.80 = 514,633,977.60 : x
  2. Step 2: Convert to fraction form
    859,858,051.20/1,289,787,076.80 = 514,633,977.60/x
  3. Step 3: Cross multiply
    859,858,051.20x = 1,289,787,076.80 × 514,633,977.60
  4. Step 4: Simplify right side
    859,858,051.20x = 663,768,253,590,660,736
  5. Step 5: Solve for x
    x = 663,768,253,590,660,736/859,858,051.20
  6. Step 6: Final answer
    x = 771,950,966.40

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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.