Home / 289,248,265.80-433,875,930.30-84,780,477.72

Finding the Fourth Proportional to 289,248,265.80, 433,875,930.30 and 84,780,477.72

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Solution

The fourth proportional to 289,248,265.80, 433,875,930.30 and 84,780,477.72 is: 127,171,751.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,248,265.80 : 433,875,930.30 = 84,780,477.72 : x
  2. Step 2: Convert to fraction form
    289,248,265.80/433,875,930.30 = 84,780,477.72/x
  3. Step 3: Cross multiply
    289,248,265.80x = 433,875,930.30 × 84,780,477.72
  4. Step 4: Simplify right side
    289,248,265.80x = 36,784,208,642,043,424
  5. Step 5: Solve for x
    x = 36,784,208,642,043,424/289,248,265.80
  6. Step 6: Final answer
    x = 127,171,751.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.