Home / 12,819,355.08-17,690,624.70-7,018,234.32

Finding the Fourth Proportional to 12,819,355.08, 17,690,624.70 and 7,018,234.32

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Solution

The fourth proportional to 12,819,355.08, 17,690,624.70 and 7,018,234.32 is: 9,685,116.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,819,355.08 : 17,690,624.70 = 7,018,234.32 : x
  2. Step 2: Convert to fraction form
    12,819,355.08/17,690,624.70 = 7,018,234.32/x
  3. Step 3: Cross multiply
    12,819,355.08x = 17,690,624.70 × 7,018,234.32
  4. Step 4: Simplify right side
    12,819,355.08x = 124,156,949,411,779.70
  5. Step 5: Solve for x
    x = 124,156,949,411,779.70/12,819,355.08
  6. Step 6: Final answer
    x = 9,685,116.66

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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.