Home / 13,209,743.70-19,814,615.55-8,426,774.70

Finding the Fourth Proportional to 13,209,743.70, 19,814,615.55 and 8,426,774.70

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Solution

The fourth proportional to 13,209,743.70, 19,814,615.55 and 8,426,774.70 is: 12,640,162.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209,743.70 : 19,814,615.55 = 8,426,774.70 : x
  2. Step 2: Convert to fraction form
    13,209,743.70/19,814,615.55 = 8,426,774.70/x
  3. Step 3: Cross multiply
    13,209,743.70x = 19,814,615.55 × 8,426,774.70
  4. Step 4: Simplify right side
    13,209,743.70x = 166,973,301,006,966.56
  5. Step 5: Solve for x
    x = 166,973,301,006,966.56/13,209,743.70
  6. Step 6: Final answer
    x = 12,640,162.05

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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.