Home / 657,657,033.84-907,566,392.43-393,339,021.57

Finding the Fourth Proportional to 657,657,033.84, 907,566,392.43 and 393,339,021.57

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Solution

The fourth proportional to 657,657,033.84, 907,566,392.43 and 393,339,021.57 is: 542,807,661.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,657,033.84 : 907,566,392.43 = 393,339,021.57 : x
  2. Step 2: Convert to fraction form
    657,657,033.84/907,566,392.43 = 393,339,021.57/x
  3. Step 3: Cross multiply
    657,657,033.84x = 907,566,392.43 × 393,339,021.57
  4. Step 4: Simplify right side
    657,657,033.84x = 356,981,276,808,230,848
  5. Step 5: Solve for x
    x = 356,981,276,808,230,848/657,657,033.84
  6. Step 6: Final answer
    x = 542,807,661.80

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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.