Home / 18,683,886.10-28,025,829.15-5,220,714.10

Finding the Fourth Proportional to 18,683,886.10, 28,025,829.15 and 5,220,714.10

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Solution

The fourth proportional to 18,683,886.10, 28,025,829.15 and 5,220,714.10 is: 7,831,071.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,683,886.10 : 28,025,829.15 = 5,220,714.10 : x
  2. Step 2: Convert to fraction form
    18,683,886.10/28,025,829.15 = 5,220,714.10/x
  3. Step 3: Cross multiply
    18,683,886.10x = 28,025,829.15 × 5,220,714.10
  4. Step 4: Simplify right side
    18,683,886.10x = 146,314,841,407,596
  5. Step 5: Solve for x
    x = 146,314,841,407,596/18,683,886.10
  6. Step 6: Final answer
    x = 7,831,071.15

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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.