Home / 840,130,538.05-1,159,383,845.55-463,790,218.30

Finding the Fourth Proportional to 840,130,538.05, 1,159,383,845.55 and 463,790,218.30

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Solution

The fourth proportional to 840,130,538.05, 1,159,383,845.55 and 463,790,218.30 is: 640,032,545.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,130,538.05 : 1,159,383,845.55 = 463,790,218.30 : x
  2. Step 2: Convert to fraction form
    840,130,538.05/1,159,383,845.55 = 463,790,218.30/x
  3. Step 3: Cross multiply
    840,130,538.05x = 1,159,383,845.55 × 463,790,218.30
  4. Step 4: Simplify right side
    840,130,538.05x = 537,710,886,820,246,848
  5. Step 5: Solve for x
    x = 537,710,886,820,246,848/840,130,538.05
  6. Step 6: Final answer
    x = 640,032,545.50

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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.