Home / 21,456,136.20-32,221,529.10-11,378,440.20

Finding the Fourth Proportional to 21,456,136.20, 32,221,529.10 and 11,378,440.20

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Solution

The fourth proportional to 21,456,136.20, 32,221,529.10 and 11,378,440.20 is: 17,087,454.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,456,136.20 : 32,221,529.10 = 11,378,440.20 : x
  2. Step 2: Convert to fraction form
    21,456,136.20/32,221,529.10 = 11,378,440.20/x
  3. Step 3: Cross multiply
    21,456,136.20x = 32,221,529.10 × 11,378,440.20
  4. Step 4: Simplify right side
    21,456,136.20x = 366,630,742,016,909.81
  5. Step 5: Solve for x
    x = 366,630,742,016,909.81/21,456,136.20
  6. Step 6: Final answer
    x = 17,087,454.08

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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.