Home / 8,721,170,089.40-13,081,755,134.10-8,047,728,054.20

Finding the Fourth Proportional to 8,721,170,089.40, 13,081,755,134.10 and 8,047,728,054.20

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Solution

The fourth proportional to 8,721,170,089.40, 13,081,755,134.10 and 8,047,728,054.20 is: 12,071,592,081.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721,170,089.40 : 13,081,755,134.10 = 8,047,728,054.20 : x
  2. Step 2: Convert to fraction form
    8,721,170,089.40/13,081,755,134.10 = 8,047,728,054.20/x
  3. Step 3: Cross multiply
    8,721,170,089.40x = 13,081,755,134.10 × 8,047,728,054.20
  4. Step 4: Simplify right side
    8,721,170,089.40x = 105,278,407,790,871,445,504
  5. Step 5: Solve for x
    x = 105,278,407,790,871,445,504/8,721,170,089.40
  6. Step 6: Final answer
    x = 12,071,592,081.30

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Double scale
Find fourth proportional to 8,721,170,090.40, 13,081,755,135.60 and 8,047,728,055.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.