Home / 434,485,582.81-651,667,012.51-139,342,350.67

Finding the Fourth Proportional to 434,485,582.81, 651,667,012.51 and 139,342,350.67

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Solution

The fourth proportional to 434,485,582.81, 651,667,012.51 and 139,342,350.67 is: 208,993,846.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,485,582.81 : 651,667,012.51 = 139,342,350.67 : x
  2. Step 2: Convert to fraction form
    434,485,582.81/651,667,012.51 = 139,342,350.67/x
  3. Step 3: Cross multiply
    434,485,582.81x = 651,667,012.51 × 139,342,350.67
  4. Step 4: Simplify right side
    434,485,582.81x = 90,804,813,378,270,448
  5. Step 5: Solve for x
    x = 90,804,813,378,270,448/434,485,582.81
  6. Step 6: Final answer
    x = 208,993,846.91

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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.