Home / 208,215,277.12-287,337,109.64-115,401,777.04

Finding the Fourth Proportional to 208,215,277.12, 287,337,109.64 and 115,401,777.04

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Solution

The fourth proportional to 208,215,277.12, 287,337,109.64 and 115,401,777.04 is: 159,254,467.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,215,277.12 : 287,337,109.64 = 115,401,777.04 : x
  2. Step 2: Convert to fraction form
    208,215,277.12/287,337,109.64 = 115,401,777.04/x
  3. Step 3: Cross multiply
    208,215,277.12x = 287,337,109.64 × 115,401,777.04
  4. Step 4: Simplify right side
    208,215,277.12x = 33,159,213,061,993,316
  5. Step 5: Solve for x
    x = 33,159,213,061,993,316/208,215,277.12
  6. Step 6: Final answer
    x = 159,254,467.40

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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.