Home / 885,912,246.30-1,328,868,369.45-425,739,452.70

Finding the Fourth Proportional to 885,912,246.30, 1,328,868,369.45 and 425,739,452.70

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Solution

The fourth proportional to 885,912,246.30, 1,328,868,369.45 and 425,739,452.70 is: 638,609,179.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,912,246.30 : 1,328,868,369.45 = 425,739,452.70 : x
  2. Step 2: Convert to fraction form
    885,912,246.30/1,328,868,369.45 = 425,739,452.70/x
  3. Step 3: Cross multiply
    885,912,246.30x = 1,328,868,369.45 × 425,739,452.70
  4. Step 4: Simplify right side
    885,912,246.30x = 565,751,692,319,984,384
  5. Step 5: Solve for x
    x = 565,751,692,319,984,384/885,912,246.30
  6. Step 6: Final answer
    x = 638,609,179.05

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Double scale
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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.