Home / 72,763,534.22-100,413,439.43-39,724,189.88

Finding the Fourth Proportional to 72,763,534.22, 100,413,439.43 and 39,724,189.88

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Solution

The fourth proportional to 72,763,534.22, 100,413,439.43 and 39,724,189.88 is: 54,819,252.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,763,534.22 : 100,413,439.43 = 39,724,189.88 : x
  2. Step 2: Convert to fraction form
    72,763,534.22/100,413,439.43 = 39,724,189.88/x
  3. Step 3: Cross multiply
    72,763,534.22x = 100,413,439.43 × 39,724,189.88
  4. Step 4: Simplify right side
    72,763,534.22x = 3,988,842,533,720,510.50
  5. Step 5: Solve for x
    x = 3,988,842,533,720,510.50/72,763,534.22
  6. Step 6: Final answer
    x = 54,819,252.21

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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.