Home / 65,688,606.72-90,646,620.48-36,318,240

Finding the Fourth Proportional to 65,688,606.72, 90,646,620.48 and 36,318,240

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Solution

The fourth proportional to 65,688,606.72, 90,646,620.48 and 36,318,240 is: 50,117,149.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,688,606.72 : 90,646,620.48 = 36,318,240 : x
  2. Step 2: Convert to fraction form
    65,688,606.72/90,646,620.48 = 36,318,240/x
  3. Step 3: Cross multiply
    65,688,606.72x = 90,646,620.48 × 36,318,240
  4. Step 4: Simplify right side
    65,688,606.72x = 3,292,125,717,781,555.50
  5. Step 5: Solve for x
    x = 3,292,125,717,781,555.50/65,688,606.72
  6. Step 6: Final answer
    x = 50,117,149.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.