Home / 778,704,152.33-1,074,611,643.48-421,471,868.02

Finding the Fourth Proportional to 778,704,152.33, 1,074,611,643.48 and 421,471,868.02

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Solution

The fourth proportional to 778,704,152.33, 1,074,611,643.48 and 421,471,868.02 is: 581,631,130.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,704,152.33 : 1,074,611,643.48 = 421,471,868.02 : x
  2. Step 2: Convert to fraction form
    778,704,152.33/1,074,611,643.48 = 421,471,868.02/x
  3. Step 3: Cross multiply
    778,704,152.33x = 1,074,611,643.48 × 421,471,868.02
  4. Step 4: Simplify right side
    778,704,152.33x = 452,918,576,770,871,296
  5. Step 5: Solve for x
    x = 452,918,576,770,871,296/778,704,152.33
  6. Step 6: Final answer
    x = 581,631,130.92

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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.