Home / 40,159,413.08-55,420,587.28-21,824,713.16

Finding the Fourth Proportional to 40,159,413.08, 55,420,587.28 and 21,824,713.16

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Solution

The fourth proportional to 40,159,413.08, 55,420,587.28 and 21,824,713.16 is: 30,118,428.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,159,413.08 : 55,420,587.28 = 21,824,713.16 : x
  2. Step 2: Convert to fraction form
    40,159,413.08/55,420,587.28 = 21,824,713.16/x
  3. Step 3: Cross multiply
    40,159,413.08x = 55,420,587.28 × 21,824,713.16
  4. Step 4: Simplify right side
    40,159,413.08x = 1,209,538,420,544,744.75
  5. Step 5: Solve for x
    x = 1,209,538,420,544,744.75/40,159,413.08
  6. Step 6: Final answer
    x = 30,118,428.73

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1.5x scale

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.