Home / 908,967,413.80-1,254,374,464.10-491,279,699.10

Finding the Fourth Proportional to 908,967,413.80, 1,254,374,464.10 and 491,279,699.10

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Solution

The fourth proportional to 908,967,413.80, 1,254,374,464.10 and 491,279,699.10 is: 677,965,678.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,967,413.80 : 1,254,374,464.10 = 491,279,699.10 : x
  2. Step 2: Convert to fraction form
    908,967,413.80/1,254,374,464.10 = 491,279,699.10/x
  3. Step 3: Cross multiply
    908,967,413.80x = 1,254,374,464.10 × 491,279,699.10
  4. Step 4: Simplify right side
    908,967,413.80x = 616,248,709,281,771,776
  5. Step 5: Solve for x
    x = 616,248,709,281,771,776/908,967,413.80
  6. Step 6: Final answer
    x = 677,965,678.34

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Double scale
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1.5x scale

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.