Home / 13,293,905.16-18,345,602.10-7,182,338.52

Finding the Fourth Proportional to 13,293,905.16, 18,345,602.10 and 7,182,338.52

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Solution

The fourth proportional to 13,293,905.16, 18,345,602.10 and 7,182,338.52 is: 9,911,634.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,293,905.16 : 18,345,602.10 = 7,182,338.52 : x
  2. Step 2: Convert to fraction form
    13,293,905.16/18,345,602.10 = 7,182,338.52/x
  3. Step 3: Cross multiply
    13,293,905.16x = 18,345,602.10 × 7,182,338.52
  4. Step 4: Simplify right side
    13,293,905.16x = 131,764,324,635,422.89
  5. Step 5: Solve for x
    x = 131,764,324,635,422.89/13,293,905.16
  6. Step 6: Final answer
    x = 9,911,634.17

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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.