Home / 12,485,800.70-18,724,035.45-8,688,002.30

Finding the Fourth Proportional to 12,485,800.70, 18,724,035.45 and 8,688,002.30

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Solution

The fourth proportional to 12,485,800.70, 18,724,035.45 and 8,688,002.30 is: 13,028,756.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485,800.70 : 18,724,035.45 = 8,688,002.30 : x
  2. Step 2: Convert to fraction form
    12,485,800.70/18,724,035.45 = 8,688,002.30/x
  3. Step 3: Cross multiply
    12,485,800.70x = 18,724,035.45 × 8,688,002.30
  4. Step 4: Simplify right side
    12,485,800.70x = 162,674,463,054,881.53
  5. Step 5: Solve for x
    x = 162,674,463,054,881.53/12,485,800.70
  6. Step 6: Final answer
    x = 13,028,756.98

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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.