Home / 13,151,009,915.30-18,149,746,341.56-8,001,422,971.19

Finding the Fourth Proportional to 13,151,009,915.30, 18,149,746,341.56 and 8,001,422,971.19

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Solution

The fourth proportional to 13,151,009,915.30, 18,149,746,341.56 and 8,001,422,971.19 is: 11,042,786,693.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,151,009,915.30 : 18,149,746,341.56 = 8,001,422,971.19 : x
  2. Step 2: Convert to fraction form
    13,151,009,915.30/18,149,746,341.56 = 8,001,422,971.19/x
  3. Step 3: Cross multiply
    13,151,009,915.30x = 18,149,746,341.56 × 8,001,422,971.19
  4. Step 4: Simplify right side
    13,151,009,915.30x = 145,223,797,298,748,964,864
  5. Step 5: Solve for x
    x = 145,223,797,298,748,964,864/13,151,009,915.30
  6. Step 6: Final answer
    x = 11,042,786,693.50

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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.