Home / 20,604,117.60-30,906,176.40-19,428,386.40

Finding the Fourth Proportional to 20,604,117.60, 30,906,176.40 and 19,428,386.40

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Solution

The fourth proportional to 20,604,117.60, 30,906,176.40 and 19,428,386.40 is: 29,142,579.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,604,117.60 : 30,906,176.40 = 19,428,386.40 : x
  2. Step 2: Convert to fraction form
    20,604,117.60/30,906,176.40 = 19,428,386.40/x
  3. Step 3: Cross multiply
    20,604,117.60x = 30,906,176.40 × 19,428,386.40
  4. Step 4: Simplify right side
    20,604,117.60x = 600,457,137,245,760.88
  5. Step 5: Solve for x
    x = 600,457,137,245,760.88/20,604,117.60
  6. Step 6: Final answer
    x = 29,142,579.60

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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.