Home / 21,949,012.84-30,287,430.21-12,157,627.61

Finding the Fourth Proportional to 21,949,012.84, 30,287,430.21 and 12,157,627.61

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Solution

The fourth proportional to 21,949,012.84, 30,287,430.21 and 12,157,627.61 is: 16,776,303.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,949,012.84 : 30,287,430.21 = 12,157,627.61 : x
  2. Step 2: Convert to fraction form
    21,949,012.84/30,287,430.21 = 12,157,627.61/x
  3. Step 3: Cross multiply
    21,949,012.84x = 30,287,430.21 × 12,157,627.61
  4. Step 4: Simplify right side
    21,949,012.84x = 368,223,297,605,607
  5. Step 5: Solve for x
    x = 368,223,297,605,607/21,949,012.84
  6. Step 6: Final answer
    x = 16,776,303.35

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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.