Home / 620,656,808.10-930,854,575.35-313,660,328.10

Finding the Fourth Proportional to 620,656,808.10, 930,854,575.35 and 313,660,328.10

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Solution

The fourth proportional to 620,656,808.10, 930,854,575.35 and 313,660,328.10 is: 470,424,472.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,656,808.10 : 930,854,575.35 = 313,660,328.10 : x
  2. Step 2: Convert to fraction form
    620,656,808.10/930,854,575.35 = 313,660,328.10/x
  3. Step 3: Cross multiply
    620,656,808.10x = 930,854,575.35 × 313,660,328.10
  4. Step 4: Simplify right side
    620,656,808.10x = 291,972,151,517,667,200
  5. Step 5: Solve for x
    x = 291,972,151,517,667,200/620,656,808.10
  6. Step 6: Final answer
    x = 470,424,472.44

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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.