Home / 691,092,219.20-1,036,638,328.80-432,811,893.20

Finding the Fourth Proportional to 691,092,219.20, 1,036,638,328.80 and 432,811,893.20

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Solution

The fourth proportional to 691,092,219.20, 1,036,638,328.80 and 432,811,893.20 is: 649,217,839.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,092,219.20 : 1,036,638,328.80 = 432,811,893.20 : x
  2. Step 2: Convert to fraction form
    691,092,219.20/1,036,638,328.80 = 432,811,893.20/x
  3. Step 3: Cross multiply
    691,092,219.20x = 1,036,638,328.80 × 432,811,893.20
  4. Step 4: Simplify right side
    691,092,219.20x = 448,669,397,651,612,032
  5. Step 5: Solve for x
    x = 448,669,397,651,612,032/691,092,219.20
  6. Step 6: Final answer
    x = 649,217,839.80

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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.