Home / 154,412,581.74-213,137,132.13-99,408,394.50

Finding the Fourth Proportional to 154,412,581.74, 213,137,132.13 and 99,408,394.50

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Solution

The fourth proportional to 154,412,581.74, 213,137,132.13 and 99,408,394.50 is: 137,214,337.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,412,581.74 : 213,137,132.13 = 99,408,394.50 : x
  2. Step 2: Convert to fraction form
    154,412,581.74/213,137,132.13 = 99,408,394.50/x
  3. Step 3: Cross multiply
    154,412,581.74x = 213,137,132.13 × 99,408,394.50
  4. Step 4: Simplify right side
    154,412,581.74x = 21,187,620,113,377,664
  5. Step 5: Solve for x
    x = 21,187,620,113,377,664/154,412,581.74
  6. Step 6: Final answer
    x = 137,214,337.55

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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.