Home / 125,702,823-173,371,622.80-81,664,011.07

Finding the Fourth Proportional to 125,702,823, 173,371,622.80 and 81,664,011.07

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Solution

The fourth proportional to 125,702,823, 173,371,622.80 and 81,664,011.07 is: 112,632,491.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,702,823 : 173,371,622.80 = 81,664,011.07 : x
  2. Step 2: Convert to fraction form
    125,702,823/173,371,622.80 = 81,664,011.07/x
  3. Step 3: Cross multiply
    125,702,823x = 173,371,622.80 × 81,664,011.07
  4. Step 4: Simplify right side
    125,702,823x = 14,158,222,123,563,064
  5. Step 5: Solve for x
    x = 14,158,222,123,563,064/125,702,823
  6. Step 6: Final answer
    x = 112,632,491.34

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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.