Home / 21,438,047.40-32,157,071.10-18,355,689.60

Finding the Fourth Proportional to 21,438,047.40, 32,157,071.10 and 18,355,689.60

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Solution

The fourth proportional to 21,438,047.40, 32,157,071.10 and 18,355,689.60 is: 27,533,534.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,438,047.40 : 32,157,071.10 = 18,355,689.60 : x
  2. Step 2: Convert to fraction form
    21,438,047.40/32,157,071.10 = 18,355,689.60/x
  3. Step 3: Cross multiply
    21,438,047.40x = 32,157,071.10 × 18,355,689.60
  4. Step 4: Simplify right side
    21,438,047.40x = 590,265,215,556,730.62
  5. Step 5: Solve for x
    x = 590,265,215,556,730.62/21,438,047.40
  6. Step 6: Final answer
    x = 27,533,534.40

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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.