Home / 139,782,210.80-192,900,035.39-77,056,931.84

Finding the Fourth Proportional to 139,782,210.80, 192,900,035.39 and 77,056,931.84

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Solution

The fourth proportional to 139,782,210.80, 192,900,035.39 and 77,056,931.84 is: 106,338,888.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,782,210.80 : 192,900,035.39 = 77,056,931.84 : x
  2. Step 2: Convert to fraction form
    139,782,210.80/192,900,035.39 = 77,056,931.84/x
  3. Step 3: Cross multiply
    139,782,210.80x = 192,900,035.39 × 77,056,931.84
  4. Step 4: Simplify right side
    139,782,210.80x = 14,864,284,877,631,030
  5. Step 5: Solve for x
    x = 14,864,284,877,631,030/139,782,210.80
  6. Step 6: Final answer
    x = 106,338,888.14

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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.