Home / 81,942,702,378.07-113,018,318,835.73-70,530,384,226.18

Finding the Fourth Proportional to 81,942,702,378.07, 113,018,318,835.73 and 70,530,384,226.18

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Solution

The fourth proportional to 81,942,702,378.07, 113,018,318,835.73 and 70,530,384,226.18 is: 97,278,039,663.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,942,702,378.07 : 113,018,318,835.73 = 70,530,384,226.18 : x
  2. Step 2: Convert to fraction form
    81,942,702,378.07/113,018,318,835.73 = 70,530,384,226.18/x
  3. Step 3: Cross multiply
    81,942,702,378.07x = 113,018,318,835.73 × 70,530,384,226.18
  4. Step 4: Simplify right side
    81,942,702,378.07x = 7,971,225,452,081,406,017,536
  5. Step 5: Solve for x
    x = 7,971,225,452,081,406,017,536/81,942,702,378.07
  6. Step 6: Final answer
    x = 97,278,039,663.66

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Double scale
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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.