Home / 420,209,330.87-630,336,984.65-174,590,799.86

Finding the Fourth Proportional to 420,209,330.87, 630,336,984.65 and 174,590,799.86

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Solution

The fourth proportional to 420,209,330.87, 630,336,984.65 and 174,590,799.86 is: 261,895,751.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,209,330.87 : 630,336,984.65 = 174,590,799.86 : x
  2. Step 2: Convert to fraction form
    420,209,330.87/630,336,984.65 = 174,590,799.86/x
  3. Step 3: Cross multiply
    420,209,330.87x = 630,336,984.65 × 174,590,799.86
  4. Step 4: Simplify right side
    420,209,330.87x = 110,051,038,330,511,088
  5. Step 5: Solve for x
    x = 110,051,038,330,511,088/420,209,330.87
  6. Step 6: Final answer
    x = 261,895,751.11

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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.