Home / 139,152,884.87-192,031,325.36-77,273,221.61

Finding the Fourth Proportional to 139,152,884.87, 192,031,325.36 and 77,273,221.61

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Solution

The fourth proportional to 139,152,884.87, 192,031,325.36 and 77,273,221.61 is: 106,637,236.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,152,884.87 : 192,031,325.36 = 77,273,221.61 : x
  2. Step 2: Convert to fraction form
    139,152,884.87/192,031,325.36 = 77,273,221.61/x
  3. Step 3: Cross multiply
    139,152,884.87x = 192,031,325.36 × 77,273,221.61
  4. Step 4: Simplify right side
    139,152,884.87x = 14,838,879,159,258,770
  5. Step 5: Solve for x
    x = 14,838,879,159,258,770/139,152,884.87
  6. Step 6: Final answer
    x = 106,637,236.98

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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.