Home / 21,989,877.20-32,997,678.60-9,209,308.40

Finding the Fourth Proportional to 21,989,877.20, 32,997,678.60 and 9,209,308.40

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Solution

The fourth proportional to 21,989,877.20, 32,997,678.60 and 9,209,308.40 is: 13,819,349.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,989,877.20 : 32,997,678.60 = 9,209,308.40 : x
  2. Step 2: Convert to fraction form
    21,989,877.20/32,997,678.60 = 9,209,308.40/x
  3. Step 3: Cross multiply
    21,989,877.20x = 32,997,678.60 × 9,209,308.40
  4. Step 4: Simplify right side
    21,989,877.20x = 303,885,798,711,480.25
  5. Step 5: Solve for x
    x = 303,885,798,711,480.25/21,989,877.20
  6. Step 6: Final answer
    x = 13,819,349.51

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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.