Home / 702,726,834,095.12-969,783,487,702.64-398,222,365,129.02

Finding the Fourth Proportional to 702,726,834,095.12, 969,783,487,702.64 and 398,222,365,129.02

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Solution

The fourth proportional to 702,726,834,095.12, 969,783,487,702.64 and 398,222,365,129.02 is: 549,558,456,285.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,726,834,095.12 : 969,783,487,702.64 = 398,222,365,129.02 : x
  2. Step 2: Convert to fraction form
    702,726,834,095.12/969,783,487,702.64 = 398,222,365,129.02/x
  3. Step 3: Cross multiply
    702,726,834,095.12x = 969,783,487,702.64 × 398,222,365,129.02
  4. Step 4: Simplify right side
    702,726,834,095.12x = 386,189,474,136,015,211,855,872
  5. Step 5: Solve for x
    x = 386,189,474,136,015,211,855,872/702,726,834,095.12
  6. Step 6: Final answer
    x = 549,558,456,285.93

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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.