Home / 20,754,413.40-31,140,477.45-9,966,161.10

Finding the Fourth Proportional to 20,754,413.40, 31,140,477.45 and 9,966,161.10

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Solution

The fourth proportional to 20,754,413.40, 31,140,477.45 and 9,966,161.10 is: 14,953,494.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,754,413.40 : 31,140,477.45 = 9,966,161.10 : x
  2. Step 2: Convert to fraction form
    20,754,413.40/31,140,477.45 = 9,966,161.10/x
  3. Step 3: Cross multiply
    20,754,413.40x = 31,140,477.45 × 9,966,161.10
  4. Step 4: Simplify right side
    20,754,413.40x = 310,351,014,997,617.19
  5. Step 5: Solve for x
    x = 310,351,014,997,617.19/20,754,413.40
  6. Step 6: Final answer
    x = 14,953,494.90

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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.