Home / 28,321,765,014.90-39,083,836,895.52-15,461,404,973.75

Finding the Fourth Proportional to 28,321,765,014.90, 39,083,836,895.52 and 15,461,404,973.75

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Solution

The fourth proportional to 28,321,765,014.90, 39,083,836,895.52 and 15,461,404,973.75 is: 21,336,630,321.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,321,765,014.90 : 39,083,836,895.52 = 15,461,404,973.75 : x
  2. Step 2: Convert to fraction form
    28,321,765,014.90/39,083,836,895.52 = 15,461,404,973.75/x
  3. Step 3: Cross multiply
    28,321,765,014.90x = 39,083,836,895.52 × 15,461,404,973.75
  4. Step 4: Simplify right side
    28,321,765,014.90x = 604,291,030,169,431,310,336
  5. Step 5: Solve for x
    x = 604,291,030,169,431,310,336/28,321,765,014.90
  6. Step 6: Final answer
    x = 21,336,630,321.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.