Home / 630,080,300.40-945,120,450.60-543,915,999.60

Finding the Fourth Proportional to 630,080,300.40, 945,120,450.60 and 543,915,999.60

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Solution

The fourth proportional to 630,080,300.40, 945,120,450.60 and 543,915,999.60 is: 815,873,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,080,300.40 : 945,120,450.60 = 543,915,999.60 : x
  2. Step 2: Convert to fraction form
    630,080,300.40/945,120,450.60 = 543,915,999.60/x
  3. Step 3: Cross multiply
    630,080,300.40x = 945,120,450.60 × 543,915,999.60
  4. Step 4: Simplify right side
    630,080,300.40x = 514,066,134,630,501,440
  5. Step 5: Solve for x
    x = 514,066,134,630,501,440/630,080,300.40
  6. Step 6: Final answer
    x = 815,873,999.40

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1.5x scale

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.