Home / 388,461,012.80-582,691,519.20-346,134,689.60

Finding the Fourth Proportional to 388,461,012.80, 582,691,519.20 and 346,134,689.60

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Solution

The fourth proportional to 388,461,012.80, 582,691,519.20 and 346,134,689.60 is: 519,202,034.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,461,012.80 : 582,691,519.20 = 346,134,689.60 : x
  2. Step 2: Convert to fraction form
    388,461,012.80/582,691,519.20 = 346,134,689.60/x
  3. Step 3: Cross multiply
    388,461,012.80x = 582,691,519.20 × 346,134,689.60
  4. Step 4: Simplify right side
    388,461,012.80x = 201,689,748,130,844,480
  5. Step 5: Solve for x
    x = 201,689,748,130,844,480/388,461,012.80
  6. Step 6: Final answer
    x = 519,202,034.40

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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.