Home / 28,042,444.50-38,698,690.05-15,165,388.50

Finding the Fourth Proportional to 28,042,444.50, 38,698,690.05 and 15,165,388.50

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Solution

The fourth proportional to 28,042,444.50, 38,698,690.05 and 15,165,388.50 is: 20,928,299.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,042,444.50 : 38,698,690.05 = 15,165,388.50 : x
  2. Step 2: Convert to fraction form
    28,042,444.50/38,698,690.05 = 15,165,388.50/x
  3. Step 3: Cross multiply
    28,042,444.50x = 38,698,690.05 × 15,165,388.50
  4. Step 4: Simplify right side
    28,042,444.50x = 586,880,669,049,334.38
  5. Step 5: Solve for x
    x = 586,880,669,049,334.38/28,042,444.50
  6. Step 6: Final answer
    x = 20,928,299.21

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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.