Home / 388,536,701.60-582,721,071.60-170,186,621.60

Finding the Fourth Proportional to 388,536,701.60, 582,721,071.60 and 170,186,621.60

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Solution

The fourth proportional to 388,536,701.60, 582,721,071.60 and 170,186,621.60 is: 255,243,147.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,536,701.60 : 582,721,071.60 = 170,186,621.60 : x
  2. Step 2: Convert to fraction form
    388,536,701.60/582,721,071.60 = 170,186,621.60/x
  3. Step 3: Cross multiply
    388,536,701.60x = 582,721,071.60 × 170,186,621.60
  4. Step 4: Simplify right side
    388,536,701.60x = 99,171,330,510,735,712
  5. Step 5: Solve for x
    x = 99,171,330,510,735,712/388,536,701.60
  6. Step 6: Final answer
    x = 255,243,147.18

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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.