Home / 420,552,465.60-630,828,698.40-275,433,643.20

Finding the Fourth Proportional to 420,552,465.60, 630,828,698.40 and 275,433,643.20

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Solution

The fourth proportional to 420,552,465.60, 630,828,698.40 and 275,433,643.20 is: 413,150,464.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,552,465.60 : 630,828,698.40 = 275,433,643.20 : x
  2. Step 2: Convert to fraction form
    420,552,465.60/630,828,698.40 = 275,433,643.20/x
  3. Step 3: Cross multiply
    420,552,465.60x = 630,828,698.40 × 275,433,643.20
  4. Step 4: Simplify right side
    420,552,465.60x = 173,751,446,635,425,984
  5. Step 5: Solve for x
    x = 173,751,446,635,425,984/420,552,465.60
  6. Step 6: Final answer
    x = 413,150,464.80

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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.