Home / 907,635,297.95-1,252,503,643.01-505,728,280.89

Finding the Fourth Proportional to 907,635,297.95, 1,252,503,643.01 and 505,728,280.89

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Solution

The fourth proportional to 907,635,297.95, 1,252,503,643.01 and 505,728,280.89 is: 697,886,602.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,635,297.95 : 1,252,503,643.01 = 505,728,280.89 : x
  2. Step 2: Convert to fraction form
    907,635,297.95/1,252,503,643.01 = 505,728,280.89/x
  3. Step 3: Cross multiply
    907,635,297.95x = 1,252,503,643.01 × 505,728,280.89
  4. Step 4: Simplify right side
    907,635,297.95x = 633,426,514,185,380,992
  5. Step 5: Solve for x
    x = 633,426,514,185,380,992/907,635,297.95
  6. Step 6: Final answer
    x = 697,886,602.27

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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.