Home / 870,038,812.86-1,305,022,826.07-214,973,342.70

Finding the Fourth Proportional to 870,038,812.86, 1,305,022,826.07 and 214,973,342.70

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Solution

The fourth proportional to 870,038,812.86, 1,305,022,826.07 and 214,973,342.70 is: 322,451,268.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,038,812.86 : 1,305,022,826.07 = 214,973,342.70 : x
  2. Step 2: Convert to fraction form
    870,038,812.86/1,305,022,826.07 = 214,973,342.70/x
  3. Step 3: Cross multiply
    870,038,812.86x = 1,305,022,826.07 × 214,973,342.70
  4. Step 4: Simplify right side
    870,038,812.86x = 280,545,119,220,068,576
  5. Step 5: Solve for x
    x = 280,545,119,220,068,576/870,038,812.86
  6. Step 6: Final answer
    x = 322,451,268.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.