Home / 38,143,501.21-52,638,689.46-20,739,963.93

Finding the Fourth Proportional to 38,143,501.21, 52,638,689.46 and 20,739,963.93

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Solution

The fourth proportional to 38,143,501.21, 52,638,689.46 and 20,739,963.93 is: 28,621,507.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,143,501.21 : 52,638,689.46 = 20,739,963.93 : x
  2. Step 2: Convert to fraction form
    38,143,501.21/52,638,689.46 = 20,739,963.93/x
  3. Step 3: Cross multiply
    38,143,501.21x = 52,638,689.46 × 20,739,963.93
  4. Step 4: Simplify right side
    38,143,501.21x = 1,091,724,520,722,871.12
  5. Step 5: Solve for x
    x = 1,091,724,520,722,871.12/38,143,501.21
  6. Step 6: Final answer
    x = 28,621,507.89

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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.