Home / 21,286,009.80-31,929,014.70-6,140,435.40

Finding the Fourth Proportional to 21,286,009.80, 31,929,014.70 and 6,140,435.40

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Solution

The fourth proportional to 21,286,009.80, 31,929,014.70 and 6,140,435.40 is: 9,210,653.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,286,009.80 : 31,929,014.70 = 6,140,435.40 : x
  2. Step 2: Convert to fraction form
    21,286,009.80/31,929,014.70 = 6,140,435.40/x
  3. Step 3: Cross multiply
    21,286,009.80x = 31,929,014.70 × 6,140,435.40
  4. Step 4: Simplify right side
    21,286,009.80x = 196,058,052,151,000.38
  5. Step 5: Solve for x
    x = 196,058,052,151,000.38/21,286,009.80
  6. Step 6: Final answer
    x = 9,210,653.10

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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.