Home / 85,968,000.30-128,952,000.45-58,758,221.10

Finding the Fourth Proportional to 85,968,000.30, 128,952,000.45 and 58,758,221.10

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Solution

The fourth proportional to 85,968,000.30, 128,952,000.45 and 58,758,221.10 is: 88,137,331.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,968,000.30 : 128,952,000.45 = 58,758,221.10 : x
  2. Step 2: Convert to fraction form
    85,968,000.30/128,952,000.45 = 58,758,221.10/x
  3. Step 3: Cross multiply
    85,968,000.30x = 128,952,000.45 × 58,758,221.10
  4. Step 4: Simplify right side
    85,968,000.30x = 7,576,990,153,728,400
  5. Step 5: Solve for x
    x = 7,576,990,153,728,400/85,968,000.30
  6. Step 6: Final answer
    x = 88,137,331.65

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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.