Home / 28,186,515-38,896,729.13-16,584,829.92

Finding the Fourth Proportional to 28,186,515, 38,896,729.13 and 16,584,829.92

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Solution

The fourth proportional to 28,186,515, 38,896,729.13 and 16,584,829.92 is: 22,886,676.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,186,515 : 38,896,729.13 = 16,584,829.92 : x
  2. Step 2: Convert to fraction form
    28,186,515/38,896,729.13 = 16,584,829.92/x
  3. Step 3: Cross multiply
    28,186,515x = 38,896,729.13 × 16,584,829.92
  4. Step 4: Simplify right side
    28,186,515x = 645,095,637,106,821.62
  5. Step 5: Solve for x
    x = 645,095,637,106,821.62/28,186,515
  6. Step 6: Final answer
    x = 22,886,676.03

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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.