Home / 77,323,389-106,703,545.44-42,515,835.72

Finding the Fourth Proportional to 77,323,389, 106,703,545.44 and 42,515,835.72

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Solution

The fourth proportional to 77,323,389, 106,703,545.44 and 42,515,835.72 is: 58,670,351.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,323,389 : 106,703,545.44 = 42,515,835.72 : x
  2. Step 2: Convert to fraction form
    77,323,389/106,703,545.44 = 42,515,835.72/x
  3. Step 3: Cross multiply
    77,323,389x = 106,703,545.44 × 42,515,835.72
  4. Step 4: Simplify right side
    77,323,389x = 4,536,590,408,668,595
  5. Step 5: Solve for x
    x = 4,536,590,408,668,595/77,323,389
  6. Step 6: Final answer
    x = 58,670,351.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.