Home / 31,500,965.40-47,156,969.70-18,714,888.60

Finding the Fourth Proportional to 31,500,965.40, 47,156,969.70 and 18,714,888.60

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Solution

The fourth proportional to 31,500,965.40, 47,156,969.70 and 18,714,888.60 is: 28,016,202.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,500,965.40 : 47,156,969.70 = 18,714,888.60 : x
  2. Step 2: Convert to fraction form
    31,500,965.40/47,156,969.70 = 18,714,888.60/x
  3. Step 3: Cross multiply
    31,500,965.40x = 47,156,969.70 × 18,714,888.60
  4. Step 4: Simplify right side
    31,500,965.40x = 882,537,434,649,075.50
  5. Step 5: Solve for x
    x = 882,537,434,649,075.50/31,500,965.40
  6. Step 6: Final answer
    x = 28,016,202.79

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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.