Home / 698,156,670,785.93-963,479,977,823.33-405,158,908,709.74

Finding the Fourth Proportional to 698,156,670,785.93, 963,479,977,823.33 and 405,158,908,709.74

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Solution

The fourth proportional to 698,156,670,785.93, 963,479,977,823.33 and 405,158,908,709.74 is: 559,133,089,624.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,156,670,785.93 : 963,479,977,823.33 = 405,158,908,709.74 : x
  2. Step 2: Convert to fraction form
    698,156,670,785.93/963,479,977,823.33 = 405,158,908,709.74/x
  3. Step 3: Cross multiply
    698,156,670,785.93x = 963,479,977,823.33 × 405,158,908,709.74
  4. Step 4: Simplify right side
    698,156,670,785.93x = 390,362,496,378,584,862,556,160
  5. Step 5: Solve for x
    x = 390,362,496,378,584,862,556,160/698,156,670,785.93
  6. Step 6: Final answer
    x = 559,133,089,624.63

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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.