Home / 885,912,278.80-1,328,868,418.20-425,739,485.20

Finding the Fourth Proportional to 885,912,278.80, 1,328,868,418.20 and 425,739,485.20

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Solution

The fourth proportional to 885,912,278.80, 1,328,868,418.20 and 425,739,485.20 is: 638,609,227.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,912,278.80 : 1,328,868,418.20 = 425,739,485.20 : x
  2. Step 2: Convert to fraction form
    885,912,278.80/1,328,868,418.20 = 425,739,485.20/x
  3. Step 3: Cross multiply
    885,912,278.80x = 1,328,868,418.20 × 425,739,485.20
  4. Step 4: Simplify right side
    885,912,278.80x = 565,751,756,263,006,336
  5. Step 5: Solve for x
    x = 565,751,756,263,006,336/885,912,278.80
  6. Step 6: Final answer
    x = 638,609,227.80

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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.