Home / 287,021,658,767.99-396,090,048,017.73-155,034,007,617.11

Finding the Fourth Proportional to 287,021,658,767.99, 396,090,048,017.73 and 155,034,007,617.11

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Solution

The fourth proportional to 287,021,658,767.99, 396,090,048,017.73 and 155,034,007,617.11 is: 213,947,016,350.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,021,658,767.99 : 396,090,048,017.73 = 155,034,007,617.11 : x
  2. Step 2: Convert to fraction form
    287,021,658,767.99/396,090,048,017.73 = 155,034,007,617.11/x
  3. Step 3: Cross multiply
    287,021,658,767.99x = 396,090,048,017.73 × 155,034,007,617.11
  4. Step 4: Simplify right side
    287,021,658,767.99x = 61,407,427,521,442,211,692,544
  5. Step 5: Solve for x
    x = 61,407,427,521,442,211,692,544/287,021,658,767.99
  6. Step 6: Final answer
    x = 213,947,016,350.71

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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.