Home / 15,205,384.40-20,983,429.32-9,093,812.72

Finding the Fourth Proportional to 15,205,384.40, 20,983,429.32 and 9,093,812.72

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Solution

The fourth proportional to 15,205,384.40, 20,983,429.32 and 9,093,812.72 is: 12,549,460.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,205,384.40 : 20,983,429.32 = 9,093,812.72 : x
  2. Step 2: Convert to fraction form
    15,205,384.40/20,983,429.32 = 9,093,812.72/x
  3. Step 3: Cross multiply
    15,205,384.40x = 20,983,429.32 × 9,093,812.72
  4. Step 4: Simplify right side
    15,205,384.40x = 190,819,376,459,436.97
  5. Step 5: Solve for x
    x = 190,819,376,459,436.97/15,205,384.40
  6. Step 6: Final answer
    x = 12,549,460.86

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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.