Home / 211,778,602.52-317,668,152.72-66,212,926.88

Finding the Fourth Proportional to 211,778,602.52, 317,668,152.72 and 66,212,926.88

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Solution

The fourth proportional to 211,778,602.52, 317,668,152.72 and 66,212,926.88 is: 99,319,468.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,778,602.52 : 317,668,152.72 = 66,212,926.88 : x
  2. Step 2: Convert to fraction form
    211,778,602.52/317,668,152.72 = 66,212,926.88/x
  3. Step 3: Cross multiply
    211,778,602.52x = 317,668,152.72 × 66,212,926.88
  4. Step 4: Simplify right side
    211,778,602.52x = 21,033,738,168,154,036
  5. Step 5: Solve for x
    x = 21,033,738,168,154,036/211,778,602.52
  6. Step 6: Final answer
    x = 99,319,468.15

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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.