Home / 2,157,078.16-2,976,830.16-1,190,270.71

Finding the Fourth Proportional to 2,157,078.16, 2,976,830.16 and 1,190,270.71

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Solution

The fourth proportional to 2,157,078.16, 2,976,830.16 and 1,190,270.71 is: 1,642,607.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,078.16 : 2,976,830.16 = 1,190,270.71 : x
  2. Step 2: Convert to fraction form
    2,157,078.16/2,976,830.16 = 1,190,270.71/x
  3. Step 3: Cross multiply
    2,157,078.16x = 2,976,830.16 × 1,190,270.71
  4. Step 4: Simplify right side
    2,157,078.16x = 3,543,233,733,208.46
  5. Step 5: Solve for x
    x = 3,543,233,733,208.46/2,157,078.16
  6. Step 6: Final answer
    x = 1,642,607.95

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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.