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Finding the Fourth Proportional to 401,325,865.80, 601,988,798.70 and 340,103,862.60

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Solution

The fourth proportional to 401,325,865.80, 601,988,798.70 and 340,103,862.60 is: 510,155,793.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,325,865.80 : 601,988,798.70 = 340,103,862.60 : x
  2. Step 2: Convert to fraction form
    401,325,865.80/601,988,798.70 = 340,103,862.60/x
  3. Step 3: Cross multiply
    401,325,865.80x = 601,988,798.70 × 340,103,862.60
  4. Step 4: Simplify right side
    401,325,865.80x = 204,738,715,679,803,904
  5. Step 5: Solve for x
    x = 204,738,715,679,803,904/401,325,865.80
  6. Step 6: Final answer
    x = 510,155,793.90

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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.