Home / 1,505,432,190.78-2,077,374,624.90-870,393,426.34

Finding the Fourth Proportional to 1,505,432,190.78, 2,077,374,624.90 and 870,393,426.34

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Solution

The fourth proportional to 1,505,432,190.78, 2,077,374,624.90 and 870,393,426.34 is: 1,201,072,508.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,505,432,190.78 : 2,077,374,624.90 = 870,393,426.34 : x
  2. Step 2: Convert to fraction form
    1,505,432,190.78/2,077,374,624.90 = 870,393,426.34/x
  3. Step 3: Cross multiply
    1,505,432,190.78x = 2,077,374,624.90 × 870,393,426.34
  4. Step 4: Simplify right side
    1,505,432,190.78x = 1,808,133,217,558,483,456
  5. Step 5: Solve for x
    x = 1,808,133,217,558,483,456/1,505,432,190.78
  6. Step 6: Final answer
    x = 1,201,072,508.37

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1.5x scale

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.