Home / 621,630,371.10-931,985,871.09-375,932,383.05

Finding the Fourth Proportional to 621,630,371.10, 931,985,871.09 and 375,932,383.05

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Solution

The fourth proportional to 621,630,371.10, 931,985,871.09 and 375,932,383.05 is: 563,620,578.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,630,371.10 : 931,985,871.09 = 375,932,383.05 : x
  2. Step 2: Convert to fraction form
    621,630,371.10/931,985,871.09 = 375,932,383.05/x
  3. Step 3: Cross multiply
    621,630,371.10x = 931,985,871.09 × 375,932,383.05
  4. Step 4: Simplify right side
    621,630,371.10x = 350,363,669,487,793,856
  5. Step 5: Solve for x
    x = 350,363,669,487,793,856/621,630,371.10
  6. Step 6: Final answer
    x = 563,620,578.69

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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.