Home / 38,398,451.51-52,989,868.10-20,994,808.79

Finding the Fourth Proportional to 38,398,451.51, 52,989,868.10 and 20,994,808.79

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Solution

The fourth proportional to 38,398,451.51, 52,989,868.10 and 20,994,808.79 is: 28,972,838.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,398,451.51 : 52,989,868.10 = 20,994,808.79 : x
  2. Step 2: Convert to fraction form
    38,398,451.51/52,989,868.10 = 20,994,808.79/x
  3. Step 3: Cross multiply
    38,398,451.51x = 52,989,868.10 × 20,994,808.79
  4. Step 4: Simplify right side
    38,398,451.51x = 1,112,512,148,461,846.50
  5. Step 5: Solve for x
    x = 1,112,512,148,461,846.50/38,398,451.51
  6. Step 6: Final answer
    x = 28,972,838.87

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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.