Home / 387,155,119.08-534,267,336.90-210,944,562.60

Finding the Fourth Proportional to 387,155,119.08, 534,267,336.90 and 210,944,562.60

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Solution

The fourth proportional to 387,155,119.08, 534,267,336.90 and 210,944,562.60 is: 291,099,830.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,155,119.08 : 534,267,336.90 = 210,944,562.60 : x
  2. Step 2: Convert to fraction form
    387,155,119.08/534,267,336.90 = 210,944,562.60/x
  3. Step 3: Cross multiply
    387,155,119.08x = 534,267,336.90 × 210,944,562.60
  4. Step 4: Simplify right side
    387,155,119.08x = 112,700,789,693,837,328
  5. Step 5: Solve for x
    x = 112,700,789,693,837,328/387,155,119.08
  6. Step 6: Final answer
    x = 291,099,830.89

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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.