Home / 28,040,146.40-42,060,219.60-12,923,602.40

Finding the Fourth Proportional to 28,040,146.40, 42,060,219.60 and 12,923,602.40

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Solution

The fourth proportional to 28,040,146.40, 42,060,219.60 and 12,923,602.40 is: 19,385,403.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,040,146.40 : 42,060,219.60 = 12,923,602.40 : x
  2. Step 2: Convert to fraction form
    28,040,146.40/42,060,219.60 = 12,923,602.40/x
  3. Step 3: Cross multiply
    28,040,146.40x = 42,060,219.60 × 12,923,602.40
  4. Step 4: Simplify right side
    28,040,146.40x = 543,569,554,967,087.06
  5. Step 5: Solve for x
    x = 543,569,554,967,087.06/28,040,146.40
  6. Step 6: Final answer
    x = 19,385,403.60

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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.