Home / 12,630,519.76-17,430,093.56-7,123,877.59

Finding the Fourth Proportional to 12,630,519.76, 17,430,093.56 and 7,123,877.59

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Solution

The fourth proportional to 12,630,519.76, 17,430,093.56 and 7,123,877.59 is: 9,830,937.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,630,519.76 : 17,430,093.56 = 7,123,877.59 : x
  2. Step 2: Convert to fraction form
    12,630,519.76/17,430,093.56 = 7,123,877.59/x
  3. Step 3: Cross multiply
    12,630,519.76x = 17,430,093.56 × 7,123,877.59
  4. Step 4: Simplify right side
    12,630,519.76x = 124,169,852,848,788.62
  5. Step 5: Solve for x
    x = 124,169,852,848,788.62/12,630,519.76
  6. Step 6: Final answer
    x = 9,830,937.70

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1.5x scale

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.