Home / 647,867,527.66-971,902,068.72-211,066,525.36

Finding the Fourth Proportional to 647,867,527.66, 971,902,068.72 and 211,066,525.36

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Solution

The fourth proportional to 647,867,527.66, 971,902,068.72 and 211,066,525.36 is: 316,632,619.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,867,527.66 : 971,902,068.72 = 211,066,525.36 : x
  2. Step 2: Convert to fraction form
    647,867,527.66/971,902,068.72 = 211,066,525.36/x
  3. Step 3: Cross multiply
    647,867,527.66x = 971,902,068.72 × 211,066,525.36
  4. Step 4: Simplify right side
    647,867,527.66x = 205,135,992,634,926,368
  5. Step 5: Solve for x
    x = 205,135,992,634,926,368/647,867,527.66
  6. Step 6: Final answer
    x = 316,632,619.91

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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.