Home / 18,219,090-25,139,182.56-11,253,669.84

Finding the Fourth Proportional to 18,219,090, 25,139,182.56 and 11,253,669.84

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Solution

The fourth proportional to 18,219,090, 25,139,182.56 and 11,253,669.84 is: 15,528,111.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219,090 : 25,139,182.56 = 11,253,669.84 : x
  2. Step 2: Convert to fraction form
    18,219,090/25,139,182.56 = 11,253,669.84/x
  3. Step 3: Cross multiply
    18,219,090x = 25,139,182.56 × 11,253,669.84
  4. Step 4: Simplify right side
    18,219,090x = 282,908,060,577,726
  5. Step 5: Solve for x
    x = 282,908,060,577,726/18,219,090
  6. Step 6: Final answer
    x = 15,528,111.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.