Home / 330,782,428.84-456,506,439.30-189,666,780.04

Finding the Fourth Proportional to 330,782,428.84, 456,506,439.30 and 189,666,780.04

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Solution

The fourth proportional to 330,782,428.84, 456,506,439.30 and 189,666,780.04 is: 261,755,458.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,782,428.84 : 456,506,439.30 = 189,666,780.04 : x
  2. Step 2: Convert to fraction form
    330,782,428.84/456,506,439.30 = 189,666,780.04/x
  3. Step 3: Cross multiply
    330,782,428.84x = 456,506,439.30 × 189,666,780.04
  4. Step 4: Simplify right side
    330,782,428.84x = 86,584,106,409,556,704
  5. Step 5: Solve for x
    x = 86,584,106,409,556,704/330,782,428.84
  6. Step 6: Final answer
    x = 261,755,458.76

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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.