Home / 38,687,952.21-53,389,373.72-21,283,923.93

Finding the Fourth Proportional to 38,687,952.21, 53,389,373.72 and 21,283,923.93

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Solution

The fourth proportional to 38,687,952.21, 53,389,373.72 and 21,283,923.93 is: 29,371,814.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,687,952.21 : 53,389,373.72 = 21,283,923.93 : x
  2. Step 2: Convert to fraction form
    38,687,952.21/53,389,373.72 = 21,283,923.93/x
  3. Step 3: Cross multiply
    38,687,952.21x = 53,389,373.72 × 21,283,923.93
  4. Step 4: Simplify right side
    38,687,952.21x = 1,136,335,368,820,401.50
  5. Step 5: Solve for x
    x = 1,136,335,368,820,401.50/38,687,952.21
  6. Step 6: Final answer
    x = 29,371,814.84

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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.