Home / 20,030,013.80-30,045,020.70-13,971,586.40

Finding the Fourth Proportional to 20,030,013.80, 30,045,020.70 and 13,971,586.40

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Solution

The fourth proportional to 20,030,013.80, 30,045,020.70 and 13,971,586.40 is: 20,957,379.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030,013.80 : 30,045,020.70 = 13,971,586.40 : x
  2. Step 2: Convert to fraction form
    20,030,013.80/30,045,020.70 = 13,971,586.40/x
  3. Step 3: Cross multiply
    20,030,013.80x = 30,045,020.70 × 13,971,586.40
  4. Step 4: Simplify right side
    20,030,013.80x = 419,776,602,599,838.50
  5. Step 5: Solve for x
    x = 419,776,602,599,838.50/20,030,013.80
  6. Step 6: Final answer
    x = 20,957,379.60

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1.5x scale

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.