Home / 839,814,000.55-1,259,721,000.83-355,139,808.55

Finding the Fourth Proportional to 839,814,000.55, 1,259,721,000.83 and 355,139,808.55

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Solution

The fourth proportional to 839,814,000.55, 1,259,721,000.83 and 355,139,808.55 is: 532,709,712.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,814,000.55 : 1,259,721,000.83 = 355,139,808.55 : x
  2. Step 2: Convert to fraction form
    839,814,000.55/1,259,721,000.83 = 355,139,808.55/x
  3. Step 3: Cross multiply
    839,814,000.55x = 1,259,721,000.83 × 355,139,808.55
  4. Step 4: Simplify right side
    839,814,000.55x = 447,377,075,059,404,928
  5. Step 5: Solve for x
    x = 447,377,075,059,404,928/839,814,000.55
  6. Step 6: Final answer
    x = 532,709,712.83

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Double scale
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Similar ratio
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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.