Home / 376,485,473.59-519,562,570.31-209,228,784.38

Finding the Fourth Proportional to 376,485,473.59, 519,562,570.31 and 209,228,784.38

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Solution

The fourth proportional to 376,485,473.59, 519,562,570.31 and 209,228,784.38 is: 288,742,734.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,485,473.59 : 519,562,570.31 = 209,228,784.38 : x
  2. Step 2: Convert to fraction form
    376,485,473.59/519,562,570.31 = 209,228,784.38/x
  3. Step 3: Cross multiply
    376,485,473.59x = 519,562,570.31 × 209,228,784.38
  4. Step 4: Simplify right side
    376,485,473.59x = 108,707,444,994,263,440
  5. Step 5: Solve for x
    x = 108,707,444,994,263,440/376,485,473.59
  6. Step 6: Final answer
    x = 288,742,734.11

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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.