Home / 287,713,038.70-431,569,558.05-195,880,033.90

Finding the Fourth Proportional to 287,713,038.70, 431,569,558.05 and 195,880,033.90

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Solution

The fourth proportional to 287,713,038.70, 431,569,558.05 and 195,880,033.90 is: 293,820,050.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,713,038.70 : 431,569,558.05 = 195,880,033.90 : x
  2. Step 2: Convert to fraction form
    287,713,038.70/431,569,558.05 = 195,880,033.90/x
  3. Step 3: Cross multiply
    287,713,038.70x = 431,569,558.05 × 195,880,033.90
  4. Step 4: Simplify right side
    287,713,038.70x = 84,535,859,661,042,016
  5. Step 5: Solve for x
    x = 84,535,859,661,042,016/287,713,038.70
  6. Step 6: Final answer
    x = 293,820,050.85

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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.