Home / 319,615,801.20-479,423,701.80-216,303,670.80

Finding the Fourth Proportional to 319,615,801.20, 479,423,701.80 and 216,303,670.80

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Solution

The fourth proportional to 319,615,801.20, 479,423,701.80 and 216,303,670.80 is: 324,455,506.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,615,801.20 : 479,423,701.80 = 216,303,670.80 : x
  2. Step 2: Convert to fraction form
    319,615,801.20/479,423,701.80 = 216,303,670.80/x
  3. Step 3: Cross multiply
    319,615,801.20x = 479,423,701.80 × 216,303,670.80
  4. Step 4: Simplify right side
    319,615,801.20x = 103,701,106,567,864,576
  5. Step 5: Solve for x
    x = 103,701,106,567,864,576/319,615,801.20
  6. Step 6: Final answer
    x = 324,455,506.20

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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.