Home / 1,241,082,861.78-1,712,705,901.69-684,185,837.70

Finding the Fourth Proportional to 1,241,082,861.78, 1,712,705,901.69 and 684,185,837.70

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Solution

The fourth proportional to 1,241,082,861.78, 1,712,705,901.69 and 684,185,837.70 is: 944,182,824.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241,082,861.78 : 1,712,705,901.69 = 684,185,837.70 : x
  2. Step 2: Convert to fraction form
    1,241,082,861.78/1,712,705,901.69 = 684,185,837.70/x
  3. Step 3: Cross multiply
    1,241,082,861.78x = 1,712,705,901.69 × 684,185,837.70
  4. Step 4: Simplify right side
    1,241,082,861.78x = 1,171,809,122,081,506,560
  5. Step 5: Solve for x
    x = 1,171,809,122,081,506,560/1,241,082,861.78
  6. Step 6: Final answer
    x = 944,182,824.67

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Double scale
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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.