Home / 315,558,518.12-435,462,400.80-176,330,423.96

Finding the Fourth Proportional to 315,558,518.12, 435,462,400.80 and 176,330,423.96

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Solution

The fourth proportional to 315,558,518.12, 435,462,400.80 and 176,330,423.96 is: 243,331,316.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,558,518.12 : 435,462,400.80 = 176,330,423.96 : x
  2. Step 2: Convert to fraction form
    315,558,518.12/435,462,400.80 = 176,330,423.96/x
  3. Step 3: Cross multiply
    315,558,518.12x = 435,462,400.80 × 176,330,423.96
  4. Step 4: Simplify right side
    315,558,518.12x = 76,785,269,751,703,456
  5. Step 5: Solve for x
    x = 76,785,269,751,703,456/315,558,518.12
  6. Step 6: Final answer
    x = 243,331,316.83

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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.