Home / 12,016,143.40-18,038,211.90-7,229,237.80

Finding the Fourth Proportional to 12,016,143.40, 18,038,211.90 and 7,229,237.80

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Solution

The fourth proportional to 12,016,143.40, 18,038,211.90 and 7,229,237.80 is: 10,852,277.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,016,143.40 : 18,038,211.90 = 7,229,237.80 : x
  2. Step 2: Convert to fraction form
    12,016,143.40/18,038,211.90 = 7,229,237.80/x
  3. Step 3: Cross multiply
    12,016,143.40x = 18,038,211.90 × 7,229,237.80
  4. Step 4: Simplify right side
    12,016,143.40x = 130,402,523,311,889.81
  5. Step 5: Solve for x
    x = 130,402,523,311,889.81/12,016,143.40
  6. Step 6: Final answer
    x = 10,852,277.55

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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.