Home / 258,946,917.56-357,346,889.60-139,869,509.22

Finding the Fourth Proportional to 258,946,917.56, 357,346,889.60 and 139,869,509.22

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Solution

The fourth proportional to 258,946,917.56, 357,346,889.60 and 139,869,509.22 is: 193,020,000.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,946,917.56 : 357,346,889.60 = 139,869,509.22 : x
  2. Step 2: Convert to fraction form
    258,946,917.56/357,346,889.60 = 139,869,509.22/x
  3. Step 3: Cross multiply
    258,946,917.56x = 357,346,889.60 × 139,869,509.22
  4. Step 4: Simplify right side
    258,946,917.56x = 49,981,934,068,946,176
  5. Step 5: Solve for x
    x = 49,981,934,068,946,176/258,946,917.56
  6. Step 6: Final answer
    x = 193,020,000.16

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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.