Home / 391,203,039.90-586,804,559.85-361,641,798.30

Finding the Fourth Proportional to 391,203,039.90, 586,804,559.85 and 361,641,798.30

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Solution

The fourth proportional to 391,203,039.90, 586,804,559.85 and 361,641,798.30 is: 542,462,697.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,203,039.90 : 586,804,559.85 = 361,641,798.30 : x
  2. Step 2: Convert to fraction form
    391,203,039.90/586,804,559.85 = 361,641,798.30/x
  3. Step 3: Cross multiply
    391,203,039.90x = 586,804,559.85 × 361,641,798.30
  4. Step 4: Simplify right side
    391,203,039.90x = 212,213,056,274,793,984
  5. Step 5: Solve for x
    x = 212,213,056,274,793,984/391,203,039.90
  6. Step 6: Final answer
    x = 542,462,697.45

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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.