Home / 12,864,075.12-19,277,971.50-7,109,400.14

Finding the Fourth Proportional to 12,864,075.12, 19,277,971.50 and 7,109,400.14

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Solution

The fourth proportional to 12,864,075.12, 19,277,971.50 and 7,109,400.14 is: 10,654,074.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,864,075.12 : 19,277,971.50 = 7,109,400.14 : x
  2. Step 2: Convert to fraction form
    12,864,075.12/19,277,971.50 = 7,109,400.14/x
  3. Step 3: Cross multiply
    12,864,075.12x = 19,277,971.50 × 7,109,400.14
  4. Step 4: Simplify right side
    12,864,075.12x = 137,054,813,281,016
  5. Step 5: Solve for x
    x = 137,054,813,281,016/12,864,075.12
  6. Step 6: Final answer
    x = 10,654,074.39

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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.