Home / 385,155,923.27-531,470,333.77-215,619,444.73

Finding the Fourth Proportional to 385,155,923.27, 531,470,333.77 and 215,619,444.73

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Solution

The fourth proportional to 385,155,923.27, 531,470,333.77 and 215,619,444.73 is: 297,529,731.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,155,923.27 : 531,470,333.77 = 215,619,444.73 : x
  2. Step 2: Convert to fraction form
    385,155,923.27/531,470,333.77 = 215,619,444.73/x
  3. Step 3: Cross multiply
    385,155,923.27x = 531,470,333.77 × 215,619,444.73
  4. Step 4: Simplify right side
    385,155,923.27x = 114,595,338,256,087,440
  5. Step 5: Solve for x
    x = 114,595,338,256,087,440/385,155,923.27
  6. Step 6: Final answer
    x = 297,529,731.03

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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.