Home / 12,798,197,226.36-17,660,801,777.40-7,158,323,457.72

Finding the Fourth Proportional to 12,798,197,226.36, 17,660,801,777.40 and 7,158,323,457.72

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Solution

The fourth proportional to 12,798,197,226.36, 17,660,801,777.40 and 7,158,323,457.72 is: 9,878,089,031.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,798,197,226.36 : 17,660,801,777.40 = 7,158,323,457.72 : x
  2. Step 2: Convert to fraction form
    12,798,197,226.36/17,660,801,777.40 = 7,158,323,457.72/x
  3. Step 3: Cross multiply
    12,798,197,226.36x = 17,660,801,777.40 × 7,158,323,457.72
  4. Step 4: Simplify right side
    12,798,197,226.36x = 126,421,731,645,305,503,744
  5. Step 5: Solve for x
    x = 126,421,731,645,305,503,744/12,798,197,226.36
  6. Step 6: Final answer
    x = 9,878,089,031.55

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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.