Home / 12,315,048.80-18,441,080.40-9,102,783.20

Finding the Fourth Proportional to 12,315,048.80, 18,441,080.40 and 9,102,783.20

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Solution

The fourth proportional to 12,315,048.80, 18,441,080.40 and 9,102,783.20 is: 13,630,896.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,315,048.80 : 18,441,080.40 = 9,102,783.20 : x
  2. Step 2: Convert to fraction form
    12,315,048.80/18,441,080.40 = 9,102,783.20/x
  3. Step 3: Cross multiply
    12,315,048.80x = 18,441,080.40 × 9,102,783.20
  4. Step 4: Simplify right side
    12,315,048.80x = 167,865,156,854,969.25
  5. Step 5: Solve for x
    x = 167,865,156,854,969.25/12,315,048.80
  6. Step 6: Final answer
    x = 13,630,896.60

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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.