Home / 21,420,187.32-29,559,555.84-12,127,517.60

Finding the Fourth Proportional to 21,420,187.32, 29,559,555.84 and 12,127,517.60

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Solution

The fourth proportional to 21,420,187.32, 29,559,555.84 and 12,127,517.60 is: 16,735,802.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,420,187.32 : 29,559,555.84 = 12,127,517.60 : x
  2. Step 2: Convert to fraction form
    21,420,187.32/29,559,555.84 = 12,127,517.60/x
  3. Step 3: Cross multiply
    21,420,187.32x = 29,559,555.84 × 12,127,517.60
  4. Step 4: Simplify right side
    21,420,187.32x = 358,484,033,697,782.75
  5. Step 5: Solve for x
    x = 358,484,033,697,782.75/21,420,187.32
  6. Step 6: Final answer
    x = 16,735,802.93

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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.