Home / 620,656,818.10-930,854,590.35-313,660,338.10

Finding the Fourth Proportional to 620,656,818.10, 930,854,590.35 and 313,660,338.10

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Solution

The fourth proportional to 620,656,818.10, 930,854,590.35 and 313,660,338.10 is: 470,424,487.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,656,818.10 : 930,854,590.35 = 313,660,338.10 : x
  2. Step 2: Convert to fraction form
    620,656,818.10/930,854,590.35 = 313,660,338.10/x
  3. Step 3: Cross multiply
    620,656,818.10x = 930,854,590.35 × 313,660,338.10
  4. Step 4: Simplify right side
    620,656,818.10x = 291,972,165,531,118,016
  5. Step 5: Solve for x
    x = 291,972,165,531,118,016/620,656,818.10
  6. Step 6: Final answer
    x = 470,424,487.44

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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.