Home / 211,778,570.52-317,668,104.72-66,212,894.88

Finding the Fourth Proportional to 211,778,570.52, 317,668,104.72 and 66,212,894.88

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Solution

The fourth proportional to 211,778,570.52, 317,668,104.72 and 66,212,894.88 is: 99,319,420.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,778,570.52 : 317,668,104.72 = 66,212,894.88 : x
  2. Step 2: Convert to fraction form
    211,778,570.52/317,668,104.72 = 66,212,894.88/x
  3. Step 3: Cross multiply
    211,778,570.52x = 317,668,104.72 × 66,212,894.88
  4. Step 4: Simplify right side
    211,778,570.52x = 21,033,724,824,554,196
  5. Step 5: Solve for x
    x = 21,033,724,824,554,196/211,778,570.52
  6. Step 6: Final answer
    x = 99,319,420.15

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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.