Home / 20,509,105.02-28,302,501.60-11,089,830.08

Finding the Fourth Proportional to 20,509,105.02, 28,302,501.60 and 11,089,830.08

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Solution

The fourth proportional to 20,509,105.02, 28,302,501.60 and 11,089,830.08 is: 15,303,931.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,509,105.02 : 28,302,501.60 = 11,089,830.08 : x
  2. Step 2: Convert to fraction form
    20,509,105.02/28,302,501.60 = 11,089,830.08/x
  3. Step 3: Cross multiply
    20,509,105.02x = 28,302,501.60 × 11,089,830.08
  4. Step 4: Simplify right side
    20,509,105.02x = 313,869,933,653,684.38
  5. Step 5: Solve for x
    x = 313,869,933,653,684.38/20,509,105.02
  6. Step 6: Final answer
    x = 15,303,931.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.