Home / 18,689,117.40-28,038,924.90-9,104,808.60

Finding the Fourth Proportional to 18,689,117.40, 28,038,924.90 and 9,104,808.60

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Solution

The fourth proportional to 18,689,117.40, 28,038,924.90 and 9,104,808.60 is: 13,659,769.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,689,117.40 : 28,038,924.90 = 9,104,808.60 : x
  2. Step 2: Convert to fraction form
    18,689,117.40/28,038,924.90 = 9,104,808.60/x
  3. Step 3: Cross multiply
    18,689,117.40x = 28,038,924.90 × 9,104,808.60
  4. Step 4: Simplify right side
    18,689,117.40x = 255,289,044,564,274.12
  5. Step 5: Solve for x
    x = 255,289,044,564,274.12/18,689,117.40
  6. Step 6: Final answer
    x = 13,659,769.97

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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.