Home / 12,103,628.20-18,134,447.10-7,841,602.60

Finding the Fourth Proportional to 12,103,628.20, 18,134,447.10 and 7,841,602.60

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Solution

The fourth proportional to 12,103,628.20, 18,134,447.10 and 7,841,602.60 is: 11,748,801.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,103,628.20 : 18,134,447.10 = 7,841,602.60 : x
  2. Step 2: Convert to fraction form
    12,103,628.20/18,134,447.10 = 7,841,602.60/x
  3. Step 3: Cross multiply
    12,103,628.20x = 18,134,447.10 × 7,841,602.60
  4. Step 4: Simplify right side
    12,103,628.20x = 142,203,127,528,922.47
  5. Step 5: Solve for x
    x = 142,203,127,528,922.47/12,103,628.20
  6. Step 6: Final answer
    x = 11,748,801.70

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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.