Home / 644,590,076.80-889,506,490.56-366,130,733.44

Finding the Fourth Proportional to 644,590,076.80, 889,506,490.56 and 366,130,733.44

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Solution

The fourth proportional to 644,590,076.80, 889,506,490.56 and 366,130,733.44 is: 505,244,612.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,590,076.80 : 889,506,490.56 = 366,130,733.44 : x
  2. Step 2: Convert to fraction form
    644,590,076.80/889,506,490.56 = 366,130,733.44/x
  3. Step 3: Cross multiply
    644,590,076.80x = 889,506,490.56 × 366,130,733.44
  4. Step 4: Simplify right side
    644,590,076.80x = 325,675,663,788,373,184
  5. Step 5: Solve for x
    x = 325,675,663,788,373,184/644,590,076.80
  6. Step 6: Final answer
    x = 505,244,612.83

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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.