Home / 84,630,039.20-126,945,058.80-79,528,205.60

Finding the Fourth Proportional to 84,630,039.20, 126,945,058.80 and 79,528,205.60

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Solution

The fourth proportional to 84,630,039.20, 126,945,058.80 and 79,528,205.60 is: 119,292,308.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,630,039.20 : 126,945,058.80 = 79,528,205.60 : x
  2. Step 2: Convert to fraction form
    84,630,039.20/126,945,058.80 = 79,528,205.60/x
  3. Step 3: Cross multiply
    84,630,039.20x = 126,945,058.80 × 79,528,205.60
  4. Step 4: Simplify right side
    84,630,039.20x = 10,095,712,736,150,488
  5. Step 5: Solve for x
    x = 10,095,712,736,150,488/84,630,039.20
  6. Step 6: Final answer
    x = 119,292,308.40

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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.