Home / 12,478,746.60-18,724,340.70-7,091,533.80

Finding the Fourth Proportional to 12,478,746.60, 18,724,340.70 and 7,091,533.80

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Solution

The fourth proportional to 12,478,746.60, 18,724,340.70 and 7,091,533.80 is: 10,640,835.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,478,746.60 : 18,724,340.70 = 7,091,533.80 : x
  2. Step 2: Convert to fraction form
    12,478,746.60/18,724,340.70 = 7,091,533.80/x
  3. Step 3: Cross multiply
    12,478,746.60x = 18,724,340.70 × 7,091,533.80
  4. Step 4: Simplify right side
    12,478,746.60x = 132,784,294,956,765.66
  5. Step 5: Solve for x
    x = 132,784,294,956,765.66/12,478,746.60
  6. Step 6: Final answer
    x = 10,640,835.91

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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.