Home / 470,338,163.05-705,461,656.71-142,816,555.11

Finding the Fourth Proportional to 470,338,163.05, 705,461,656.71 and 142,816,555.11

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Solution

The fourth proportional to 470,338,163.05, 705,461,656.71 and 142,816,555.11 is: 214,210,990.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,338,163.05 : 705,461,656.71 = 142,816,555.11 : x
  2. Step 2: Convert to fraction form
    470,338,163.05/705,461,656.71 = 142,816,555.11/x
  3. Step 3: Cross multiply
    470,338,163.05x = 705,461,656.71 × 142,816,555.11
  4. Step 4: Simplify right side
    470,338,163.05x = 100,751,603,573,515,632
  5. Step 5: Solve for x
    x = 100,751,603,573,515,632/470,338,163.05
  6. Step 6: Final answer
    x = 214,210,990.07

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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.