Home / 18,838,698-28,262,261.16-6,871,434

Finding the Fourth Proportional to 18,838,698, 28,262,261.16 and 6,871,434

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Solution

The fourth proportional to 18,838,698, 28,262,261.16 and 6,871,434 is: 10,308,688.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,838,698 : 28,262,261.16 = 6,871,434 : x
  2. Step 2: Convert to fraction form
    18,838,698/28,262,261.16 = 6,871,434/x
  3. Step 3: Cross multiply
    18,838,698x = 28,262,261.16 × 6,871,434
  4. Step 4: Simplify right side
    18,838,698x = 194,202,262,251,703.44
  5. Step 5: Solve for x
    x = 194,202,262,251,703.44/18,838,698
  6. Step 6: Final answer
    x = 10,308,688.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.