Home / 505,196,717.76-697,164,111.52-282,181,572.80

Finding the Fourth Proportional to 505,196,717.76, 697,164,111.52 and 282,181,572.80

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Solution

The fourth proportional to 505,196,717.76, 697,164,111.52 and 282,181,572.80 is: 389,406,460.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,196,717.76 : 697,164,111.52 = 282,181,572.80 : x
  2. Step 2: Convert to fraction form
    505,196,717.76/697,164,111.52 = 282,181,572.80/x
  3. Step 3: Cross multiply
    505,196,717.76x = 697,164,111.52 × 282,181,572.80
  4. Step 4: Simplify right side
    505,196,717.76x = 196,726,865,488,428,192
  5. Step 5: Solve for x
    x = 196,726,865,488,428,192/505,196,717.76
  6. Step 6: Final answer
    x = 389,406,460.04

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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.