Home / 661,404,302.88-912,678,612.52-382,964,619.12

Finding the Fourth Proportional to 661,404,302.88, 912,678,612.52 and 382,964,619.12

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Solution

The fourth proportional to 661,404,302.88, 912,678,612.52 and 382,964,619.12 is: 528,456,823.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,404,302.88 : 912,678,612.52 = 382,964,619.12 : x
  2. Step 2: Convert to fraction form
    661,404,302.88/912,678,612.52 = 382,964,619.12/x
  3. Step 3: Cross multiply
    661,404,302.88x = 912,678,612.52 × 382,964,619.12
  4. Step 4: Simplify right side
    661,404,302.88x = 349,523,617,222,691,840
  5. Step 5: Solve for x
    x = 349,523,617,222,691,840/661,404,302.88
  6. Step 6: Final answer
    x = 528,456,823.91

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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.