Home / 621,121,364.70-930,890,790.45-330,127,892.70

Finding the Fourth Proportional to 621,121,364.70, 930,890,790.45 and 330,127,892.70

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Solution

The fourth proportional to 621,121,364.70, 930,890,790.45 and 330,127,892.70 is: 494,771,283.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,121,364.70 : 930,890,790.45 = 330,127,892.70 : x
  2. Step 2: Convert to fraction form
    621,121,364.70/930,890,790.45 = 330,127,892.70/x
  3. Step 3: Cross multiply
    621,121,364.70x = 930,890,790.45 × 330,127,892.70
  4. Step 4: Simplify right side
    621,121,364.70x = 307,313,014,985,095,808
  5. Step 5: Solve for x
    x = 307,313,014,985,095,808/621,121,364.70
  6. Step 6: Final answer
    x = 494,771,283.76

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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.