Home / 109,036,675.20-163,555,012.80-72,756,969.60

Finding the Fourth Proportional to 109,036,675.20, 163,555,012.80 and 72,756,969.60

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Solution

The fourth proportional to 109,036,675.20, 163,555,012.80 and 72,756,969.60 is: 109,135,454.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,036,675.20 : 163,555,012.80 = 72,756,969.60 : x
  2. Step 2: Convert to fraction form
    109,036,675.20/163,555,012.80 = 72,756,969.60/x
  3. Step 3: Cross multiply
    109,036,675.20x = 163,555,012.80 × 72,756,969.60
  4. Step 4: Simplify right side
    109,036,675.20x = 11,899,767,094,217,210
  5. Step 5: Solve for x
    x = 11,899,767,094,217,210/109,036,675.20
  6. Step 6: Final answer
    x = 109,135,454.40

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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.