Home / 21,066,413.40-31,571,875.08-8,920,848.30

Finding the Fourth Proportional to 21,066,413.40, 31,571,875.08 and 8,920,848.30

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Solution

The fourth proportional to 21,066,413.40, 31,571,875.08 and 8,920,848.30 is: 13,369,523.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,066,413.40 : 31,571,875.08 = 8,920,848.30 : x
  2. Step 2: Convert to fraction form
    21,066,413.40/31,571,875.08 = 8,920,848.30/x
  3. Step 3: Cross multiply
    21,066,413.40x = 31,571,875.08 × 8,920,848.30
  4. Step 4: Simplify right side
    21,066,413.40x = 281,647,908,135,230.38
  5. Step 5: Solve for x
    x = 281,647,908,135,230.38/21,066,413.40
  6. Step 6: Final answer
    x = 13,369,523.46

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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.