Home / 13,258,507,489.79-18,294,009,007.59-7,618,633,721.10

Finding the Fourth Proportional to 13,258,507,489.79, 18,294,009,007.59 and 7,618,633,721.10

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Solution

The fourth proportional to 13,258,507,489.79, 18,294,009,007.59 and 7,618,633,721.10 is: 10,512,145,053.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,258,507,489.79 : 18,294,009,007.59 = 7,618,633,721.10 : x
  2. Step 2: Convert to fraction form
    13,258,507,489.79/18,294,009,007.59 = 7,618,633,721.10/x
  3. Step 3: Cross multiply
    13,258,507,489.79x = 18,294,009,007.59 × 7,618,633,721.10
  4. Step 4: Simplify right side
    13,258,507,489.79x = 139,375,353,919,332,335,616
  5. Step 5: Solve for x
    x = 139,375,353,919,332,335,616/13,258,507,489.79
  6. Step 6: Final answer
    x = 10,512,145,053.03

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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.