Home / 1,411,014,485.16-2,116,384,964.12-428,449,661.34

Finding the Fourth Proportional to 1,411,014,485.16, 2,116,384,964.12 and 428,449,661.34

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Solution

The fourth proportional to 1,411,014,485.16, 2,116,384,964.12 and 428,449,661.34 is: 642,632,964.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411,014,485.16 : 2,116,384,964.12 = 428,449,661.34 : x
  2. Step 2: Convert to fraction form
    1,411,014,485.16/2,116,384,964.12 = 428,449,661.34/x
  3. Step 3: Cross multiply
    1,411,014,485.16x = 2,116,384,964.12 × 428,449,661.34
  4. Step 4: Simplify right side
    1,411,014,485.16x = 906,764,421,142,281,984
  5. Step 5: Solve for x
    x = 906,764,421,142,281,984/1,411,014,485.16
  6. Step 6: Final answer
    x = 642,632,964.21

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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.