Home / 19,118,772-28,678,130.19-8,878,031.64

Finding the Fourth Proportional to 19,118,772, 28,678,130.19 and 8,878,031.64

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Solution

The fourth proportional to 19,118,772, 28,678,130.19 and 8,878,031.64 is: 13,317,034.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,118,772 : 28,678,130.19 = 8,878,031.64 : x
  2. Step 2: Convert to fraction form
    19,118,772/28,678,130.19 = 8,878,031.64/x
  3. Step 3: Cross multiply
    19,118,772x = 28,678,130.19 × 8,878,031.64
  4. Step 4: Simplify right side
    19,118,772x = 254,605,347,202,859.25
  5. Step 5: Solve for x
    x = 254,605,347,202,859.25/19,118,772
  6. Step 6: Final answer
    x = 13,317,034.55

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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.