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Finding the Fourth Proportional to 201,643,805.80, 302,465,708.70 and 65,342,967.40

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Solution

The fourth proportional to 201,643,805.80, 302,465,708.70 and 65,342,967.40 is: 98,014,451.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,643,805.80 : 302,465,708.70 = 65,342,967.40 : x
  2. Step 2: Convert to fraction form
    201,643,805.80/302,465,708.70 = 65,342,967.40/x
  3. Step 3: Cross multiply
    201,643,805.80x = 302,465,708.70 × 65,342,967.40
  4. Step 4: Simplify right side
    201,643,805.80x = 19,764,006,943,201,996
  5. Step 5: Solve for x
    x = 19,764,006,943,201,996/201,643,805.80
  6. Step 6: Final answer
    x = 98,014,451.10

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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.