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Finding the Fourth Proportional to 779,945,204.03, 1,075,696,790.84 and 685,657,751.67

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Solution

The fourth proportional to 779,945,204.03, 1,075,696,790.84 and 685,657,751.67 is: 945,655,975.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,945,204.03 : 1,075,696,790.84 = 685,657,751.67 : x
  2. Step 2: Convert to fraction form
    779,945,204.03/1,075,696,790.84 = 685,657,751.67/x
  3. Step 3: Cross multiply
    779,945,204.03x = 1,075,696,790.84 × 685,657,751.67
  4. Step 4: Simplify right side
    779,945,204.03x = 737,559,843,082,560,384
  5. Step 5: Solve for x
    x = 737,559,843,082,560,384/779,945,204.03
  6. Step 6: Final answer
    x = 945,655,975.93

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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.