Home / 99,563,810.40-149,168,768.40-85,408,034.40

Finding the Fourth Proportional to 99,563,810.40, 149,168,768.40 and 85,408,034.40

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Solution

The fourth proportional to 99,563,810.40, 149,168,768.40 and 85,408,034.40 is: 127,960,262.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,563,810.40 : 149,168,768.40 = 85,408,034.40 : x
  2. Step 2: Convert to fraction form
    99,563,810.40/149,168,768.40 = 85,408,034.40/x
  3. Step 3: Cross multiply
    99,563,810.40x = 149,168,768.40 × 85,408,034.40
  4. Step 4: Simplify right side
    99,563,810.40x = 12,740,211,302,912,834
  5. Step 5: Solve for x
    x = 12,740,211,302,912,834/99,563,810.40
  6. Step 6: Final answer
    x = 127,960,262.39

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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.