Home / 385,666,571.07-532,252,691.73-218,432,581.88

Finding the Fourth Proportional to 385,666,571.07, 532,252,691.73 and 218,432,581.88

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Solution

The fourth proportional to 385,666,571.07, 532,252,691.73 and 218,432,581.88 is: 301,455,553.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,666,571.07 : 532,252,691.73 = 218,432,581.88 : x
  2. Step 2: Convert to fraction form
    385,666,571.07/532,252,691.73 = 218,432,581.88/x
  3. Step 3: Cross multiply
    385,666,571.07x = 532,252,691.73 × 218,432,581.88
  4. Step 4: Simplify right side
    385,666,571.07x = 116,261,329,664,502,368
  5. Step 5: Solve for x
    x = 116,261,329,664,502,368/385,666,571.07
  6. Step 6: Final answer
    x = 301,455,553.54

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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.