Home / 630,086,999.40-945,130,499.10-545,152,343.40

Finding the Fourth Proportional to 630,086,999.40, 945,130,499.10 and 545,152,343.40

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Solution

The fourth proportional to 630,086,999.40, 945,130,499.10 and 545,152,343.40 is: 817,728,515.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,086,999.40 : 945,130,499.10 = 545,152,343.40 : x
  2. Step 2: Convert to fraction form
    630,086,999.40/945,130,499.10 = 545,152,343.40/x
  3. Step 3: Cross multiply
    630,086,999.40x = 945,130,499.10 × 545,152,343.40
  4. Step 4: Simplify right side
    630,086,999.40x = 515,240,106,403,176,576
  5. Step 5: Solve for x
    x = 515,240,106,403,176,576/630,086,999.40
  6. Step 6: Final answer
    x = 817,728,515.10

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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.