Home / 20,515,055.60-30,772,583.40-19,570,271.60

Finding the Fourth Proportional to 20,515,055.60, 30,772,583.40 and 19,570,271.60

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Solution

The fourth proportional to 20,515,055.60, 30,772,583.40 and 19,570,271.60 is: 29,355,407.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,515,055.60 : 30,772,583.40 = 19,570,271.60 : x
  2. Step 2: Convert to fraction form
    20,515,055.60/30,772,583.40 = 19,570,271.60/x
  3. Step 3: Cross multiply
    20,515,055.60x = 30,772,583.40 × 19,570,271.60
  4. Step 4: Simplify right side
    20,515,055.60x = 602,227,814,971,651.50
  5. Step 5: Solve for x
    x = 602,227,814,971,651.50/20,515,055.60
  6. Step 6: Final answer
    x = 29,355,407.40

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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.