Home / 15,484,905.38-21,370,366.42-9,290,185.22

Finding the Fourth Proportional to 15,484,905.38, 21,370,366.42 and 9,290,185.22

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Solution

The fourth proportional to 15,484,905.38, 21,370,366.42 and 9,290,185.22 is: 12,821,173.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,484,905.38 : 21,370,366.42 = 9,290,185.22 : x
  2. Step 2: Convert to fraction form
    15,484,905.38/21,370,366.42 = 9,290,185.22/x
  3. Step 3: Cross multiply
    15,484,905.38x = 21,370,366.42 × 9,290,185.22
  4. Step 4: Simplify right side
    15,484,905.38x = 198,534,662,261,068.34
  5. Step 5: Solve for x
    x = 198,534,662,261,068.34/15,484,905.38
  6. Step 6: Final answer
    x = 12,821,173.74

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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.