Home / 39,243,771.16-54,155,875.21-21,840,111.76

Finding the Fourth Proportional to 39,243,771.16, 54,155,875.21 and 21,840,111.76

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Solution

The fourth proportional to 39,243,771.16, 54,155,875.21 and 21,840,111.76 is: 30,139,059.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,243,771.16 : 54,155,875.21 = 21,840,111.76 : x
  2. Step 2: Convert to fraction form
    39,243,771.16/54,155,875.21 = 21,840,111.76/x
  3. Step 3: Cross multiply
    39,243,771.16x = 54,155,875.21 × 21,840,111.76
  4. Step 4: Simplify right side
    39,243,771.16x = 1,182,770,367,047,013.50
  5. Step 5: Solve for x
    x = 1,182,770,367,047,013.50/39,243,771.16
  6. Step 6: Final answer
    x = 30,139,059.83

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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.