Home / 875,196,891.72-1,207,757,499.62-478,716,413.22

Finding the Fourth Proportional to 875,196,891.72, 1,207,757,499.62 and 478,716,413.22

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Solution

The fourth proportional to 875,196,891.72, 1,207,757,499.62 and 478,716,413.22 is: 660,620,877.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,196,891.72 : 1,207,757,499.62 = 478,716,413.22 : x
  2. Step 2: Convert to fraction form
    875,196,891.72/1,207,757,499.62 = 478,716,413.22/x
  3. Step 3: Cross multiply
    875,196,891.72x = 1,207,757,499.62 × 478,716,413.22
  4. Step 4: Simplify right side
    875,196,891.72x = 578,173,338,255,248,384
  5. Step 5: Solve for x
    x = 578,173,338,255,248,384/875,196,891.72
  6. Step 6: Final answer
    x = 660,620,877.11

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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.