Home / 907,635,332.51-1,252,503,690.32-505,728,315.44

Finding the Fourth Proportional to 907,635,332.51, 1,252,503,690.32 and 505,728,315.44

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Solution

The fourth proportional to 907,635,332.51, 1,252,503,690.32 and 505,728,315.44 is: 697,886,649.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,635,332.51 : 1,252,503,690.32 = 505,728,315.44 : x
  2. Step 2: Convert to fraction form
    907,635,332.51/1,252,503,690.32 = 505,728,315.44/x
  3. Step 3: Cross multiply
    907,635,332.51x = 1,252,503,690.32 × 505,728,315.44
  4. Step 4: Simplify right side
    907,635,332.51x = 633,426,581,379,125,888
  5. Step 5: Solve for x
    x = 633,426,581,379,125,888/907,635,332.51
  6. Step 6: Final answer
    x = 697,886,649.73

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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.