Home / 15,878,568.83-21,912,802.58-8,909,762.04

Finding the Fourth Proportional to 15,878,568.83, 21,912,802.58 and 8,909,762.04

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Solution

The fourth proportional to 15,878,568.83, 21,912,802.58 and 8,909,762.04 is: 12,295,683.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,878,568.83 : 21,912,802.58 = 8,909,762.04 : x
  2. Step 2: Convert to fraction form
    15,878,568.83/21,912,802.58 = 8,909,762.04/x
  3. Step 3: Cross multiply
    15,878,568.83x = 21,912,802.58 × 8,909,762.04
  4. Step 4: Simplify right side
    15,878,568.83x = 195,237,856,572,749.22
  5. Step 5: Solve for x
    x = 195,237,856,572,749.22/15,878,568.83
  6. Step 6: Final answer
    x = 12,295,683.49

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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.