Home / 7,939,688.80-11,909,533.20-7,566,440.80

Finding the Fourth Proportional to 7,939,688.80, 11,909,533.20 and 7,566,440.80

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Solution

The fourth proportional to 7,939,688.80, 11,909,533.20 and 7,566,440.80 is: 11,349,661.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939,688.80 : 11,909,533.20 = 7,566,440.80 : x
  2. Step 2: Convert to fraction form
    7,939,688.80/11,909,533.20 = 7,566,440.80/x
  3. Step 3: Cross multiply
    7,939,688.80x = 11,909,533.20 × 7,566,440.80
  4. Step 4: Simplify right side
    7,939,688.80x = 90,112,777,913,434.55
  5. Step 5: Solve for x
    x = 90,112,777,913,434.55/7,939,688.80
  6. Step 6: Final answer
    x = 11,349,661.20

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Double scale
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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.