Home / 12,767,575,427.29-17,620,343,177.61-7,129,880,419.15

Finding the Fourth Proportional to 12,767,575,427.29, 17,620,343,177.61 and 7,129,880,419.15

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Solution

The fourth proportional to 12,767,575,427.29, 17,620,343,177.61 and 7,129,880,419.15 is: 9,839,843,164.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,767,575,427.29 : 17,620,343,177.61 = 7,129,880,419.15 : x
  2. Step 2: Convert to fraction form
    12,767,575,427.29/17,620,343,177.61 = 7,129,880,419.15/x
  3. Step 3: Cross multiply
    12,767,575,427.29x = 17,620,343,177.61 × 7,129,880,419.15
  4. Step 4: Simplify right side
    12,767,575,427.29x = 125,630,939,800,758,861,824
  5. Step 5: Solve for x
    x = 125,630,939,800,758,861,824/12,767,575,427.29
  6. Step 6: Final answer
    x = 9,839,843,164.91

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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.