Home / 710,006,218.56-979,789,783.58-396,743,006.70

Finding the Fourth Proportional to 710,006,218.56, 979,789,783.58 and 396,743,006.70

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Solution

The fourth proportional to 710,006,218.56, 979,789,783.58 and 396,743,006.70 is: 547,494,845.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,006,218.56 : 979,789,783.58 = 396,743,006.70 : x
  2. Step 2: Convert to fraction form
    710,006,218.56/979,789,783.58 = 396,743,006.70/x
  3. Step 3: Cross multiply
    710,006,218.56x = 979,789,783.58 × 396,743,006.70
  4. Step 4: Simplify right side
    710,006,218.56x = 388,724,744,671,471,488
  5. Step 5: Solve for x
    x = 388,724,744,671,471,488/710,006,218.56
  6. Step 6: Final answer
    x = 547,494,845.13

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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.