Home / 152,880,450.34-210,962,061.87-85,894,163.98

Finding the Fourth Proportional to 152,880,450.34, 210,962,061.87 and 85,894,163.98

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Solution

The fourth proportional to 152,880,450.34, 210,962,061.87 and 85,894,163.98 is: 118,526,665.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,880,450.34 : 210,962,061.87 = 85,894,163.98 : x
  2. Step 2: Convert to fraction form
    152,880,450.34/210,962,061.87 = 85,894,163.98/x
  3. Step 3: Cross multiply
    152,880,450.34x = 210,962,061.87 × 85,894,163.98
  4. Step 4: Simplify right side
    152,880,450.34x = 18,120,409,935,820,688
  5. Step 5: Solve for x
    x = 18,120,409,935,820,688/152,880,450.34
  6. Step 6: Final answer
    x = 118,526,665.09

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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.