Home / 18,762,009.80-28,143,014.70-12,790,041.80

Finding the Fourth Proportional to 18,762,009.80, 28,143,014.70 and 12,790,041.80

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Solution

The fourth proportional to 18,762,009.80, 28,143,014.70 and 12,790,041.80 is: 19,185,062.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,762,009.80 : 28,143,014.70 = 12,790,041.80 : x
  2. Step 2: Convert to fraction form
    18,762,009.80/28,143,014.70 = 12,790,041.80/x
  3. Step 3: Cross multiply
    18,762,009.80x = 28,143,014.70 × 12,790,041.80
  4. Step 4: Simplify right side
    18,762,009.80x = 359,950,334,391,014.50
  5. Step 5: Solve for x
    x = 359,950,334,391,014.50/18,762,009.80
  6. Step 6: Final answer
    x = 19,185,062.70

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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.