Home / 20,300,636.88-30,438,795.06-6,461,618.40

Finding the Fourth Proportional to 20,300,636.88, 30,438,795.06 and 6,461,618.40

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Solution

The fourth proportional to 20,300,636.88, 30,438,795.06 and 6,461,618.40 is: 9,688,557.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,300,636.88 : 30,438,795.06 = 6,461,618.40 : x
  2. Step 2: Convert to fraction form
    20,300,636.88/30,438,795.06 = 6,461,618.40/x
  3. Step 3: Cross multiply
    20,300,636.88x = 30,438,795.06 × 6,461,618.40
  4. Step 4: Simplify right side
    20,300,636.88x = 196,683,878,233,525.09
  5. Step 5: Solve for x
    x = 196,683,878,233,525.09/20,300,636.88
  6. Step 6: Final answer
    x = 9,688,557.03

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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.