Home / 11,671,679.60-17,507,519.40-7,640,601.20

Finding the Fourth Proportional to 11,671,679.60, 17,507,519.40 and 7,640,601.20

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Solution

The fourth proportional to 11,671,679.60, 17,507,519.40 and 7,640,601.20 is: 11,460,901.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,671,679.60 : 17,507,519.40 = 7,640,601.20 : x
  2. Step 2: Convert to fraction form
    11,671,679.60/17,507,519.40 = 7,640,601.20/x
  3. Step 3: Cross multiply
    11,671,679.60x = 17,507,519.40 × 7,640,601.20
  4. Step 4: Simplify right side
    11,671,679.60x = 133,767,973,736,663.27
  5. Step 5: Solve for x
    x = 133,767,973,736,663.27/11,671,679.60
  6. Step 6: Final answer
    x = 11,460,901.80

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1.5x scale

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.