Home / 19,117,680.40-28,709,698.20-10,159,728.40

Finding the Fourth Proportional to 19,117,680.40, 28,709,698.20 and 10,159,728.40

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Solution

The fourth proportional to 19,117,680.40, 28,709,698.20 and 10,159,728.40 is: 15,257,224.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,117,680.40 : 28,709,698.20 = 10,159,728.40 : x
  2. Step 2: Convert to fraction form
    19,117,680.40/28,709,698.20 = 10,159,728.40/x
  3. Step 3: Cross multiply
    19,117,680.40x = 28,709,698.20 × 10,159,728.40
  4. Step 4: Simplify right side
    19,117,680.40x = 291,682,736,157,968.88
  5. Step 5: Solve for x
    x = 291,682,736,157,968.88/19,117,680.40
  6. Step 6: Final answer
    x = 15,257,224.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.