Home / 19,478,719.80-29,228,577.30-8,120,316.60

Finding the Fourth Proportional to 19,478,719.80, 29,228,577.30 and 8,120,316.60

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Solution

The fourth proportional to 19,478,719.80, 29,228,577.30 and 8,120,316.60 is: 12,184,851.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,478,719.80 : 29,228,577.30 = 8,120,316.60 : x
  2. Step 2: Convert to fraction form
    19,478,719.80/29,228,577.30 = 8,120,316.60/x
  3. Step 3: Cross multiply
    19,478,719.80x = 29,228,577.30 × 8,120,316.60
  4. Step 4: Simplify right side
    19,478,719.80x = 237,345,301,443,573.19
  5. Step 5: Solve for x
    x = 237,345,301,443,573.19/19,478,719.80
  6. Step 6: Final answer
    x = 12,184,851.15

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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.