Home / 28,347,907.96-42,528,635.16-9,178,686.10

Finding the Fourth Proportional to 28,347,907.96, 42,528,635.16 and 9,178,686.10

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Solution

The fourth proportional to 28,347,907.96, 42,528,635.16 and 9,178,686.10 is: 13,770,222.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,347,907.96 : 42,528,635.16 = 9,178,686.10 : x
  2. Step 2: Convert to fraction form
    28,347,907.96/42,528,635.16 = 9,178,686.10/x
  3. Step 3: Cross multiply
    28,347,907.96x = 42,528,635.16 × 9,178,686.10
  4. Step 4: Simplify right side
    28,347,907.96x = 390,356,992,395,063.25
  5. Step 5: Solve for x
    x = 390,356,992,395,063.25/28,347,907.96
  6. Step 6: Final answer
    x = 13,770,222.23

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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.