Home / 209,985,025.80-314,977,538.70-188,821,864.20

Finding the Fourth Proportional to 209,985,025.80, 314,977,538.70 and 188,821,864.20

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Solution

The fourth proportional to 209,985,025.80, 314,977,538.70 and 188,821,864.20 is: 283,232,796.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,985,025.80 : 314,977,538.70 = 188,821,864.20 : x
  2. Step 2: Convert to fraction form
    209,985,025.80/314,977,538.70 = 188,821,864.20/x
  3. Step 3: Cross multiply
    209,985,025.80x = 314,977,538.70 × 188,821,864.20
  4. Step 4: Simplify right side
    209,985,025.80x = 59,474,646,038,461,640
  5. Step 5: Solve for x
    x = 59,474,646,038,461,640/209,985,025.80
  6. Step 6: Final answer
    x = 283,232,796.30

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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.