Home / 6,438,669.48-8,876,485.35-5,136,341.73

Finding the Fourth Proportional to 6,438,669.48, 8,876,485.35 and 5,136,341.73

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Solution

The fourth proportional to 6,438,669.48, 8,876,485.35 and 5,136,341.73 is: 7,081,068.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438,669.48 : 8,876,485.35 = 5,136,341.73 : x
  2. Step 2: Convert to fraction form
    6,438,669.48/8,876,485.35 = 5,136,341.73/x
  3. Step 3: Cross multiply
    6,438,669.48x = 8,876,485.35 × 5,136,341.73
  4. Step 4: Simplify right side
    6,438,669.48x = 45,592,662,118,938.66
  5. Step 5: Solve for x
    x = 45,592,662,118,938.66/6,438,669.48
  6. Step 6: Final answer
    x = 7,081,068.89

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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.