Home / 15,325,571.69-21,154,413.81-9,132,561.01

Finding the Fourth Proportional to 15,325,571.69, 21,154,413.81 and 9,132,561.01

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Solution

The fourth proportional to 15,325,571.69, 21,154,413.81 and 9,132,561.01 is: 12,605,988.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,325,571.69 : 21,154,413.81 = 9,132,561.01 : x
  2. Step 2: Convert to fraction form
    15,325,571.69/21,154,413.81 = 9,132,561.01/x
  3. Step 3: Cross multiply
    15,325,571.69x = 21,154,413.81 × 9,132,561.01
  4. Step 4: Simplify right side
    15,325,571.69x = 193,193,974,828,311.59
  5. Step 5: Solve for x
    x = 193,193,974,828,311.59/15,325,571.69
  6. Step 6: Final answer
    x = 12,605,988.13

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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.