Home / 10,778,860.70-16,168,291.05-7,377,638.30

Finding the Fourth Proportional to 10,778,860.70, 16,168,291.05 and 7,377,638.30

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Solution

The fourth proportional to 10,778,860.70, 16,168,291.05 and 7,377,638.30 is: 11,066,457.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,778,860.70 : 16,168,291.05 = 7,377,638.30 : x
  2. Step 2: Convert to fraction form
    10,778,860.70/16,168,291.05 = 7,377,638.30/x
  3. Step 3: Cross multiply
    10,778,860.70x = 16,168,291.05 × 7,377,638.30
  4. Step 4: Simplify right side
    10,778,860.70x = 119,283,803,296,027.22
  5. Step 5: Solve for x
    x = 119,283,803,296,027.22/10,778,860.70
  6. Step 6: Final answer
    x = 11,066,457.45

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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.