Home / 387,318,983.04-534,495,493.76-211,106,433.60

Finding the Fourth Proportional to 387,318,983.04, 534,495,493.76 and 211,106,433.60

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Solution

The fourth proportional to 387,318,983.04, 534,495,493.76 and 211,106,433.60 is: 291,324,315.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,318,983.04 : 534,495,493.76 = 211,106,433.60 : x
  2. Step 2: Convert to fraction form
    387,318,983.04/534,495,493.76 = 211,106,433.60/x
  3. Step 3: Cross multiply
    387,318,983.04x = 534,495,493.76 × 211,106,433.60
  4. Step 4: Simplify right side
    387,318,983.04x = 112,835,437,462,944,656
  5. Step 5: Solve for x
    x = 112,835,437,462,944,656/387,318,983.04
  6. Step 6: Final answer
    x = 291,324,315.11

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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.