Home / 909,601,291.76-1,255,253,565.32-491,913,577.08

Finding the Fourth Proportional to 909,601,291.76, 1,255,253,565.32 and 491,913,577.08

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Solution

The fourth proportional to 909,601,291.76, 1,255,253,565.32 and 491,913,577.08 is: 678,842,782.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,601,291.76 : 1,255,253,565.32 = 491,913,577.08 : x
  2. Step 2: Convert to fraction form
    909,601,291.76/1,255,253,565.32 = 491,913,577.08/x
  3. Step 3: Cross multiply
    909,601,291.76x = 1,255,253,565.32 × 491,913,577.08
  4. Step 4: Simplify right side
    909,601,291.76x = 617,476,271,458,984,576
  5. Step 5: Solve for x
    x = 617,476,271,458,984,576/909,601,291.76
  6. Step 6: Final answer
    x = 678,842,782.05

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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.