Home / 152,156,925.54-209,868,311.47-139,638,405.43

Finding the Fourth Proportional to 152,156,925.54, 209,868,311.47 and 139,638,405.43

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Solution

The fourth proportional to 152,156,925.54, 209,868,311.47 and 139,638,405.43 is: 192,601,659.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,156,925.54 : 209,868,311.47 = 139,638,405.43 : x
  2. Step 2: Convert to fraction form
    152,156,925.54/209,868,311.47 = 139,638,405.43/x
  3. Step 3: Cross multiply
    152,156,925.54x = 209,868,311.47 × 139,638,405.43
  4. Step 4: Simplify right side
    152,156,925.54x = 29,305,676,362,209,848
  5. Step 5: Solve for x
    x = 29,305,676,362,209,848/152,156,925.54
  6. Step 6: Final answer
    x = 192,601,659.50

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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.