Home / 18,686,556.60-28,020,503.70-8,577,756.60

Finding the Fourth Proportional to 18,686,556.60, 28,020,503.70 and 8,577,756.60

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Solution

The fourth proportional to 18,686,556.60, 28,020,503.70 and 8,577,756.60 is: 12,862,351.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686,556.60 : 28,020,503.70 = 8,577,756.60 : x
  2. Step 2: Convert to fraction form
    18,686,556.60/28,020,503.70 = 8,577,756.60/x
  3. Step 3: Cross multiply
    18,686,556.60x = 28,020,503.70 × 8,577,756.60
  4. Step 4: Simplify right side
    18,686,556.60x = 240,353,060,547,999.41
  5. Step 5: Solve for x
    x = 240,353,060,547,999.41/18,686,556.60
  6. Step 6: Final answer
    x = 12,862,351.57

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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.