Home / 143,876,941.34-198,550,038.66-77,797,281.74

Finding the Fourth Proportional to 143,876,941.34, 198,550,038.66 and 77,797,281.74

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Solution

The fourth proportional to 143,876,941.34, 198,550,038.66 and 77,797,281.74 is: 107,360,172.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,876,941.34 : 198,550,038.66 = 77,797,281.74 : x
  2. Step 2: Convert to fraction form
    143,876,941.34/198,550,038.66 = 77,797,281.74/x
  3. Step 3: Cross multiply
    143,876,941.34x = 198,550,038.66 × 77,797,281.74
  4. Step 4: Simplify right side
    143,876,941.34x = 15,446,653,297,119,910
  5. Step 5: Solve for x
    x = 15,446,653,297,119,910/143,876,941.34
  6. Step 6: Final answer
    x = 107,360,172.89

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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.