Home / 919,936,869.30-1,379,905,303.95-593,419,518.90

Finding the Fourth Proportional to 919,936,869.30, 1,379,905,303.95 and 593,419,518.90

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Solution

The fourth proportional to 919,936,869.30, 1,379,905,303.95 and 593,419,518.90 is: 890,129,278.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,936,869.30 : 1,379,905,303.95 = 593,419,518.90 : x
  2. Step 2: Convert to fraction form
    919,936,869.30/1,379,905,303.95 = 593,419,518.90/x
  3. Step 3: Cross multiply
    919,936,869.30x = 1,379,905,303.95 × 593,419,518.90
  4. Step 4: Simplify right side
    919,936,869.30x = 818,862,741,597,567,232
  5. Step 5: Solve for x
    x = 818,862,741,597,567,232/919,936,869.30
  6. Step 6: Final answer
    x = 890,129,278.35

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Double scale
Find fourth proportional to 919,936,870.30, 1,379,905,305.45 and 593,419,519.90
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.