Home / 28,538,816.58-39,383,674.93-15,486,075.50

Finding the Fourth Proportional to 28,538,816.58, 39,383,674.93 and 15,486,075.50

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Solution

The fourth proportional to 28,538,816.58, 39,383,674.93 and 15,486,075.50 is: 21,370,842.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,538,816.58 : 39,383,674.93 = 15,486,075.50 : x
  2. Step 2: Convert to fraction form
    28,538,816.58/39,383,674.93 = 15,486,075.50/x
  3. Step 3: Cross multiply
    28,538,816.58x = 39,383,674.93 × 15,486,075.50
  4. Step 4: Simplify right side
    28,538,816.58x = 609,898,563,475,647.38
  5. Step 5: Solve for x
    x = 609,898,563,475,647.38/28,538,816.58
  6. Step 6: Final answer
    x = 21,370,842.82

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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.