Home / 12,997,699.10-17,937,385.11-7,196,480.67

Finding the Fourth Proportional to 12,997,699.10, 17,937,385.11 and 7,196,480.67

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Solution

The fourth proportional to 12,997,699.10, 17,937,385.11 and 7,196,480.67 is: 9,931,453.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,997,699.10 : 17,937,385.11 = 7,196,480.67 : x
  2. Step 2: Convert to fraction form
    12,997,699.10/17,937,385.11 = 7,196,480.67/x
  3. Step 3: Cross multiply
    12,997,699.10x = 17,937,385.11 × 7,196,480.67
  4. Step 4: Simplify right side
    12,997,699.10x = 129,086,045,214,460.81
  5. Step 5: Solve for x
    x = 129,086,045,214,460.81/12,997,699.10
  6. Step 6: Final answer
    x = 9,931,453.58

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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.