Home / 840,663,516.46-1,160,187,362.22-469,457,260.78

Finding the Fourth Proportional to 840,663,516.46, 1,160,187,362.22 and 469,457,260.78

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Solution

The fourth proportional to 840,663,516.46, 1,160,187,362.22 and 469,457,260.78 is: 647,891,065.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,663,516.46 : 1,160,187,362.22 = 469,457,260.78 : x
  2. Step 2: Convert to fraction form
    840,663,516.46/1,160,187,362.22 = 469,457,260.78/x
  3. Step 3: Cross multiply
    840,663,516.46x = 1,160,187,362.22 × 469,457,260.78
  4. Step 4: Simplify right side
    840,663,516.46x = 544,658,381,059,374,848
  5. Step 5: Solve for x
    x = 544,658,381,059,374,848/840,663,516.46
  6. Step 6: Final answer
    x = 647,891,065.09

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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.