Home / 38,421,993.15-53,022,192.03-20,780,915.40

Finding the Fourth Proportional to 38,421,993.15, 53,022,192.03 and 20,780,915.40

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Solution

The fourth proportional to 38,421,993.15, 53,022,192.03 and 20,780,915.40 is: 28,677,577.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,421,993.15 : 53,022,192.03 = 20,780,915.40 : x
  2. Step 2: Convert to fraction form
    38,421,993.15/53,022,192.03 = 20,780,915.40/x
  3. Step 3: Cross multiply
    38,421,993.15x = 53,022,192.03 × 20,780,915.40
  4. Step 4: Simplify right side
    38,421,993.15x = 1,101,849,686,897,984.25
  5. Step 5: Solve for x
    x = 1,101,849,686,897,984.25/38,421,993.15
  6. Step 6: Final answer
    x = 28,677,577.52

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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.