Home / 698,156,670,787.43-963,479,977,825.40-405,158,908,711.24

Finding the Fourth Proportional to 698,156,670,787.43, 963,479,977,825.40 and 405,158,908,711.24

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Solution

The fourth proportional to 698,156,670,787.43, 963,479,977,825.40 and 405,158,908,711.24 is: 559,133,089,626.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,156,670,787.43 : 963,479,977,825.40 = 405,158,908,711.24 : x
  2. Step 2: Convert to fraction form
    698,156,670,787.43/963,479,977,825.40 = 405,158,908,711.24/x
  3. Step 3: Cross multiply
    698,156,670,787.43x = 963,479,977,825.40 × 405,158,908,711.24
  4. Step 4: Simplify right side
    698,156,670,787.43x = 390,362,496,380,868,778,524,672
  5. Step 5: Solve for x
    x = 390,362,496,380,868,778,524,672/698,156,670,787.43
  6. Step 6: Final answer
    x = 559,133,089,626.70

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Double scale
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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.