Home / 705,006,446.44-972,930,795.80-387,460,930.36

Finding the Fourth Proportional to 705,006,446.44, 972,930,795.80 and 387,460,930.36

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Solution

The fourth proportional to 705,006,446.44, 972,930,795.80 and 387,460,930.36 is: 534,708,119.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,006,446.44 : 972,930,795.80 = 387,460,930.36 : x
  2. Step 2: Convert to fraction form
    705,006,446.44/972,930,795.80 = 387,460,930.36/x
  3. Step 3: Cross multiply
    705,006,446.44x = 972,930,795.80 × 387,460,930.36
  4. Step 4: Simplify right side
    705,006,446.44x = 376,972,671,316,563,200
  5. Step 5: Solve for x
    x = 376,972,671,316,563,200/705,006,446.44
  6. Step 6: Final answer
    x = 534,708,119.65

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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.