Home / 7,180,234.31-9,907,368.16-4,279,895.06

Finding the Fourth Proportional to 7,180,234.31, 9,907,368.16 and 4,279,895.06

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Solution

The fourth proportional to 7,180,234.31, 9,907,368.16 and 4,279,895.06 is: 5,905,447.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180,234.31 : 9,907,368.16 = 4,279,895.06 : x
  2. Step 2: Convert to fraction form
    7,180,234.31/9,907,368.16 = 4,279,895.06/x
  3. Step 3: Cross multiply
    7,180,234.31x = 9,907,368.16 × 4,279,895.06
  4. Step 4: Simplify right side
    7,180,234.31x = 42,402,495,985,348.71
  5. Step 5: Solve for x
    x = 42,402,495,985,348.71/7,180,234.31
  6. Step 6: Final answer
    x = 5,905,447.39

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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.