Home / 660,229,637.10-990,344,455.65-401,949,311.10

Finding the Fourth Proportional to 660,229,637.10, 990,344,455.65 and 401,949,311.10

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Solution

The fourth proportional to 660,229,637.10, 990,344,455.65 and 401,949,311.10 is: 602,923,966.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,229,637.10 : 990,344,455.65 = 401,949,311.10 : x
  2. Step 2: Convert to fraction form
    660,229,637.10/990,344,455.65 = 401,949,311.10/x
  3. Step 3: Cross multiply
    660,229,637.10x = 990,344,455.65 × 401,949,311.10
  4. Step 4: Simplify right side
    660,229,637.10x = 398,068,271,700,222,016
  5. Step 5: Solve for x
    x = 398,068,271,700,222,016/660,229,637.10
  6. Step 6: Final answer
    x = 602,923,966.65

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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.