Home / 219,533,407.98-329,335,920.45-90,106,281.42

Finding the Fourth Proportional to 219,533,407.98, 329,335,920.45 and 90,106,281.42

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Solution

The fourth proportional to 219,533,407.98, 329,335,920.45 and 90,106,281.42 is: 135,174,119.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,533,407.98 : 329,335,920.45 = 90,106,281.42 : x
  2. Step 2: Convert to fraction form
    219,533,407.98/329,335,920.45 = 90,106,281.42/x
  3. Step 3: Cross multiply
    219,533,407.98x = 329,335,920.45 × 90,106,281.42
  4. Step 4: Simplify right side
    219,533,407.98x = 29,675,235,129,782,432
  5. Step 5: Solve for x
    x = 29,675,235,129,782,432/219,533,407.98
  6. Step 6: Final answer
    x = 135,174,119.52

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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.