Home / 13,290,263.01-18,340,569.99-7,178,691.51

Finding the Fourth Proportional to 13,290,263.01, 18,340,569.99 and 7,178,691.51

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Solution

The fourth proportional to 13,290,263.01, 18,340,569.99 and 7,178,691.51 is: 9,906,598.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290,263.01 : 18,340,569.99 = 7,178,691.51 : x
  2. Step 2: Convert to fraction form
    13,290,263.01/18,340,569.99 = 7,178,691.51/x
  3. Step 3: Cross multiply
    13,290,263.01x = 18,340,569.99 × 7,178,691.51
  4. Step 4: Simplify right side
    13,290,263.01x = 131,661,294,075,773.77
  5. Step 5: Solve for x
    x = 131,661,294,075,773.77/13,290,263.01
  6. Step 6: Final answer
    x = 9,906,598.08

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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.