Home / 405,429,673.41-559,497,358.97-238,172,984.19

Finding the Fourth Proportional to 405,429,673.41, 559,497,358.97 and 238,172,984.19

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Solution

The fourth proportional to 405,429,673.41, 559,497,358.97 and 238,172,984.19 is: 328,681,308.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,429,673.41 : 559,497,358.97 = 238,172,984.19 : x
  2. Step 2: Convert to fraction form
    405,429,673.41/559,497,358.97 = 238,172,984.19/x
  3. Step 3: Cross multiply
    405,429,673.41x = 559,497,358.97 × 238,172,984.19
  4. Step 4: Simplify right side
    405,429,673.41x = 133,257,155,631,117,712
  5. Step 5: Solve for x
    x = 133,257,155,631,117,712/405,429,673.41
  6. Step 6: Final answer
    x = 328,681,308.67

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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.