Home / 420,261,636.60-630,392,454.90-147,632,403.60

Finding the Fourth Proportional to 420,261,636.60, 630,392,454.90 and 147,632,403.60

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Solution

The fourth proportional to 420,261,636.60, 630,392,454.90 and 147,632,403.60 is: 221,448,605.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,261,636.60 : 630,392,454.90 = 147,632,403.60 : x
  2. Step 2: Convert to fraction form
    420,261,636.60/630,392,454.90 = 147,632,403.60/x
  3. Step 3: Cross multiply
    420,261,636.60x = 630,392,454.90 × 147,632,403.60
  4. Step 4: Simplify right side
    420,261,636.60x = 93,066,353,328,191,584
  5. Step 5: Solve for x
    x = 93,066,353,328,191,584/420,261,636.60
  6. Step 6: Final answer
    x = 221,448,605.40

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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.