Home / 15,990,303.76-22,066,619.16-8,648,136.88

Finding the Fourth Proportional to 15,990,303.76, 22,066,619.16 and 8,648,136.88

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Solution

The fourth proportional to 15,990,303.76, 22,066,619.16 and 8,648,136.88 is: 11,934,428.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,990,303.76 : 22,066,619.16 = 8,648,136.88 : x
  2. Step 2: Convert to fraction form
    15,990,303.76/22,066,619.16 = 8,648,136.88/x
  3. Step 3: Cross multiply
    15,990,303.76x = 22,066,619.16 × 8,648,136.88
  4. Step 4: Simplify right side
    15,990,303.76x = 190,835,142,974,510.62
  5. Step 5: Solve for x
    x = 190,835,142,974,510.62/15,990,303.76
  6. Step 6: Final answer
    x = 11,934,428.88

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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.