Home / 885,920,027.80-1,328,880,041.70-425,747,234.20

Finding the Fourth Proportional to 885,920,027.80, 1,328,880,041.70 and 425,747,234.20

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Solution

The fourth proportional to 885,920,027.80, 1,328,880,041.70 and 425,747,234.20 is: 638,620,851.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,920,027.80 : 1,328,880,041.70 = 425,747,234.20 : x
  2. Step 2: Convert to fraction form
    885,920,027.80/1,328,880,041.70 = 425,747,234.20/x
  3. Step 3: Cross multiply
    885,920,027.80x = 1,328,880,041.70 × 425,747,234.20
  4. Step 4: Simplify right side
    885,920,027.80x = 565,767,002,337,355,648
  5. Step 5: Solve for x
    x = 565,767,002,337,355,648/885,920,027.80
  6. Step 6: Final answer
    x = 638,620,851.30

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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.