Home / 20,778,048.40-31,167,072.60-15,038,485.60

Finding the Fourth Proportional to 20,778,048.40, 31,167,072.60 and 15,038,485.60

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Solution

The fourth proportional to 20,778,048.40, 31,167,072.60 and 15,038,485.60 is: 22,557,728.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,778,048.40 : 31,167,072.60 = 15,038,485.60 : x
  2. Step 2: Convert to fraction form
    20,778,048.40/31,167,072.60 = 15,038,485.60/x
  3. Step 3: Cross multiply
    20,778,048.40x = 31,167,072.60 × 15,038,485.60
  4. Step 4: Simplify right side
    20,778,048.40x = 468,705,572,489,254.56
  5. Step 5: Solve for x
    x = 468,705,572,489,254.56/20,778,048.40
  6. Step 6: Final answer
    x = 22,557,728.40

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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.