Home / 21,048,309.76-31,566,984.16-8,911,525.93

Finding the Fourth Proportional to 21,048,309.76, 31,566,984.16 and 8,911,525.93

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Solution

The fourth proportional to 21,048,309.76, 31,566,984.16 and 8,911,525.93 is: 13,364,968.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,048,309.76 : 31,566,984.16 = 8,911,525.93 : x
  2. Step 2: Convert to fraction form
    21,048,309.76/31,566,984.16 = 8,911,525.93/x
  3. Step 3: Cross multiply
    21,048,309.76x = 31,566,984.16 × 8,911,525.93
  4. Step 4: Simplify right side
    21,048,309.76x = 281,309,997,873,739.25
  5. Step 5: Solve for x
    x = 281,309,997,873,739.25/21,048,309.76
  6. Step 6: Final answer
    x = 13,364,968.55

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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.