Home / 20,415,030.40-30,622,545.60-20,273,312.80

Finding the Fourth Proportional to 20,415,030.40, 30,622,545.60 and 20,273,312.80

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Solution

The fourth proportional to 20,415,030.40, 30,622,545.60 and 20,273,312.80 is: 30,409,969.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,415,030.40 : 30,622,545.60 = 20,273,312.80 : x
  2. Step 2: Convert to fraction form
    20,415,030.40/30,622,545.60 = 20,273,312.80/x
  3. Step 3: Cross multiply
    20,415,030.40x = 30,622,545.60 × 20,273,312.80
  4. Step 4: Simplify right side
    20,415,030.40x = 620,820,445,681,063.75
  5. Step 5: Solve for x
    x = 620,820,445,681,063.75/20,415,030.40
  6. Step 6: Final answer
    x = 30,409,969.20

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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.