Home / 215,863,490.09-323,817,917.06-70,308,385.80

Finding the Fourth Proportional to 215,863,490.09, 323,817,917.06 and 70,308,385.80

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Solution

The fourth proportional to 215,863,490.09, 323,817,917.06 and 70,308,385.80 is: 105,469,966.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,863,490.09 : 323,817,917.06 = 70,308,385.80 : x
  2. Step 2: Convert to fraction form
    215,863,490.09/323,817,917.06 = 70,308,385.80/x
  3. Step 3: Cross multiply
    215,863,490.09x = 323,817,917.06 × 70,308,385.80
  4. Step 4: Simplify right side
    215,863,490.09x = 22,767,115,041,606,880
  5. Step 5: Solve for x
    x = 22,767,115,041,606,880/215,863,490.09
  6. Step 6: Final answer
    x = 105,469,966.38

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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.