Home / 12,528,721,143.26-17,290,089,767.40-7,177,315,763.78

Finding the Fourth Proportional to 12,528,721,143.26, 17,290,089,767.40 and 7,177,315,763.78

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Solution

The fourth proportional to 12,528,721,143.26, 17,290,089,767.40 and 7,177,315,763.78 is: 9,904,956,174.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,721,143.26 : 17,290,089,767.40 = 7,177,315,763.78 : x
  2. Step 2: Convert to fraction form
    12,528,721,143.26/17,290,089,767.40 = 7,177,315,763.78/x
  3. Step 3: Cross multiply
    12,528,721,143.26x = 17,290,089,767.40 × 7,177,315,763.78
  4. Step 4: Simplify right side
    12,528,721,143.26x = 124,096,433,844,731,297,792
  5. Step 5: Solve for x
    x = 124,096,433,844,731,297,792/12,528,721,143.26
  6. Step 6: Final answer
    x = 9,904,956,174.36

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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.