Home / 13,205,628.40-18,222,083.58-7,697,625.16

Finding the Fourth Proportional to 13,205,628.40, 18,222,083.58 and 7,697,625.16

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Solution

The fourth proportional to 13,205,628.40, 18,222,083.58 and 7,697,625.16 is: 10,621,741.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,205,628.40 : 18,222,083.58 = 7,697,625.16 : x
  2. Step 2: Convert to fraction form
    13,205,628.40/18,222,083.58 = 7,697,625.16/x
  3. Step 3: Cross multiply
    13,205,628.40x = 18,222,083.58 × 7,697,625.16
  4. Step 4: Simplify right side
    13,205,628.40x = 140,266,769,033,030.86
  5. Step 5: Solve for x
    x = 140,266,769,033,030.86/13,205,628.40
  6. Step 6: Final answer
    x = 10,621,741.34

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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.