Home / 390,496,136.67-538,751,194.25-223,112,298.33

Finding the Fourth Proportional to 390,496,136.67, 538,751,194.25 and 223,112,298.33

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Solution

The fourth proportional to 390,496,136.67, 538,751,194.25 and 223,112,298.33 is: 307,818,710.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,496,136.67 : 538,751,194.25 = 223,112,298.33 : x
  2. Step 2: Convert to fraction form
    390,496,136.67/538,751,194.25 = 223,112,298.33/x
  3. Step 3: Cross multiply
    390,496,136.67x = 538,751,194.25 × 223,112,298.33
  4. Step 4: Simplify right side
    390,496,136.67x = 120,202,017,176,034,224
  5. Step 5: Solve for x
    x = 120,202,017,176,034,224/390,496,136.67
  6. Step 6: Final answer
    x = 307,818,710.32

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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.