Home / 280,184,603.10-420,276,904.65-264,312,231.90

Finding the Fourth Proportional to 280,184,603.10, 420,276,904.65 and 264,312,231.90

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Solution

The fourth proportional to 280,184,603.10, 420,276,904.65 and 264,312,231.90 is: 396,468,347.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,184,603.10 : 420,276,904.65 = 264,312,231.90 : x
  2. Step 2: Convert to fraction form
    280,184,603.10/420,276,904.65 = 264,312,231.90/x
  3. Step 3: Cross multiply
    280,184,603.10x = 420,276,904.65 × 264,312,231.90
  4. Step 4: Simplify right side
    280,184,603.10x = 111,084,326,684,064,992
  5. Step 5: Solve for x
    x = 111,084,326,684,064,992/280,184,603.10
  6. Step 6: Final answer
    x = 396,468,347.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.