Home / 525,400,000.40-788,174,650.20-161,856,448.40

Finding the Fourth Proportional to 525,400,000.40, 788,174,650.20 and 161,856,448.40

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Solution

The fourth proportional to 525,400,000.40, 788,174,650.20 and 161,856,448.40 is: 242,807,669.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,400,000.40 : 788,174,650.20 = 161,856,448.40 : x
  2. Step 2: Convert to fraction form
    525,400,000.40/788,174,650.20 = 161,856,448.40/x
  3. Step 3: Cross multiply
    525,400,000.40x = 788,174,650.20 × 161,856,448.40
  4. Step 4: Simplify right side
    525,400,000.40x = 127,571,149,600,284,368
  5. Step 5: Solve for x
    x = 127,571,149,600,284,368/525,400,000.40
  6. Step 6: Final answer
    x = 242,807,669.40

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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.