Home / 698,156,670,780.32-963,479,977,815.52-405,158,908,704.12

Finding the Fourth Proportional to 698,156,670,780.32, 963,479,977,815.52 and 405,158,908,704.12

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Solution

The fourth proportional to 698,156,670,780.32, 963,479,977,815.52 and 405,158,908,704.12 is: 559,133,089,616.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,156,670,780.32 : 963,479,977,815.52 = 405,158,908,704.12 : x
  2. Step 2: Convert to fraction form
    698,156,670,780.32/963,479,977,815.52 = 405,158,908,704.12/x
  3. Step 3: Cross multiply
    698,156,670,780.32x = 963,479,977,815.52 × 405,158,908,704.12
  4. Step 4: Simplify right side
    698,156,670,780.32x = 390,362,496,370,005,866,708,992
  5. Step 5: Solve for x
    x = 390,362,496,370,005,866,708,992/698,156,670,780.32
  6. Step 6: Final answer
    x = 559,133,089,616.84

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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.