Home / 21,438,043.40-32,157,065.10-18,355,685.60

Finding the Fourth Proportional to 21,438,043.40, 32,157,065.10 and 18,355,685.60

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Solution

The fourth proportional to 21,438,043.40, 32,157,065.10 and 18,355,685.60 is: 27,533,528.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,438,043.40 : 32,157,065.10 = 18,355,685.60 : x
  2. Step 2: Convert to fraction form
    21,438,043.40/32,157,065.10 = 18,355,685.60/x
  3. Step 3: Cross multiply
    21,438,043.40x = 32,157,065.10 × 18,355,685.60
  4. Step 4: Simplify right side
    21,438,043.40x = 590,264,976,794,332.62
  5. Step 5: Solve for x
    x = 590,264,976,794,332.62/21,438,043.40
  6. Step 6: Final answer
    x = 27,533,528.40

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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.