Home / 10,779,968.70-16,169,953.05-7,378,746.30

Finding the Fourth Proportional to 10,779,968.70, 16,169,953.05 and 7,378,746.30

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Solution

The fourth proportional to 10,779,968.70, 16,169,953.05 and 7,378,746.30 is: 11,068,119.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,779,968.70 : 16,169,953.05 = 7,378,746.30 : x
  2. Step 2: Convert to fraction form
    10,779,968.70/16,169,953.05 = 7,378,746.30/x
  3. Step 3: Cross multiply
    10,779,968.70x = 16,169,953.05 × 7,378,746.30
  4. Step 4: Simplify right side
    10,779,968.70x = 119,313,981,238,861.22
  5. Step 5: Solve for x
    x = 119,313,981,238,861.22/10,779,968.70
  6. Step 6: Final answer
    x = 11,068,119.45

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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.