Home / 86,248,913,062.77-129,373,196,102.54-81,000,395,456.67

Finding the Fourth Proportional to 86,248,913,062.77, 129,373,196,102.54 and 81,000,395,456.67

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Solution

The fourth proportional to 86,248,913,062.77, 129,373,196,102.54 and 81,000,395,456.67 is: 121,500,430,250.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,248,913,062.77 : 129,373,196,102.54 = 81,000,395,456.67 : x
  2. Step 2: Convert to fraction form
    86,248,913,062.77/129,373,196,102.54 = 81,000,395,456.67/x
  3. Step 3: Cross multiply
    86,248,913,062.77x = 129,373,196,102.54 × 81,000,395,456.67
  4. Step 4: Simplify right side
    86,248,913,062.77x = 10,479,280,045,798,409,109,504
  5. Step 5: Solve for x
    x = 10,479,280,045,798,409,109,504/86,248,913,062.77
  6. Step 6: Final answer
    x = 121,500,430,250.90

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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.