Home / 12,528,721,151.01-17,290,089,778.10-7,177,315,771.53

Finding the Fourth Proportional to 12,528,721,151.01, 17,290,089,778.10 and 7,177,315,771.53

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Solution

The fourth proportional to 12,528,721,151.01, 17,290,089,778.10 and 7,177,315,771.53 is: 9,904,956,185.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,721,151.01 : 17,290,089,778.10 = 7,177,315,771.53 : x
  2. Step 2: Convert to fraction form
    12,528,721,151.01/17,290,089,778.10 = 7,177,315,771.53/x
  3. Step 3: Cross multiply
    12,528,721,151.01x = 17,290,089,778.10 × 7,177,315,771.53
  4. Step 4: Simplify right side
    12,528,721,151.01x = 124,096,434,055,490,879,488
  5. Step 5: Solve for x
    x = 124,096,434,055,490,879,488/12,528,721,151.01
  6. Step 6: Final answer
    x = 9,904,956,185.05

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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.