Home / 19,309,670.70-28,964,506.05-12,591,206.70

Finding the Fourth Proportional to 19,309,670.70, 28,964,506.05 and 12,591,206.70

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Solution

The fourth proportional to 19,309,670.70, 28,964,506.05 and 12,591,206.70 is: 18,886,810.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,309,670.70 : 28,964,506.05 = 12,591,206.70 : x
  2. Step 2: Convert to fraction form
    19,309,670.70/28,964,506.05 = 12,591,206.70/x
  3. Step 3: Cross multiply
    19,309,670.70x = 28,964,506.05 × 12,591,206.70
  4. Step 4: Simplify right side
    19,309,670.70x = 364,698,082,638,950.50
  5. Step 5: Solve for x
    x = 364,698,082,638,950.50/19,309,670.70
  6. Step 6: Final answer
    x = 18,886,810.05

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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.