Home / 136,545,810.63-188,369,313.12-89,490,364.80

Finding the Fourth Proportional to 136,545,810.63, 188,369,313.12 and 89,490,364.80

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Solution

The fourth proportional to 136,545,810.63, 188,369,313.12 and 89,490,364.80 is: 123,454,820.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,545,810.63 : 188,369,313.12 = 89,490,364.80 : x
  2. Step 2: Convert to fraction form
    136,545,810.63/188,369,313.12 = 89,490,364.80/x
  3. Step 3: Cross multiply
    136,545,810.63x = 188,369,313.12 × 89,490,364.80
  4. Step 4: Simplify right side
    136,545,810.63x = 16,857,238,548,234,226
  5. Step 5: Solve for x
    x = 16,857,238,548,234,226/136,545,810.63
  6. Step 6: Final answer
    x = 123,454,820.55

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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.