Home / 208,513,423.67-310,927,895.73-206,641,900.17

Finding the Fourth Proportional to 208,513,423.67, 310,927,895.73 and 206,641,900.17

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Solution

The fourth proportional to 208,513,423.67, 310,927,895.73 and 206,641,900.17 is: 308,137,145.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,513,423.67 : 310,927,895.73 = 206,641,900.17 : x
  2. Step 2: Convert to fraction form
    208,513,423.67/310,927,895.73 = 206,641,900.17/x
  3. Step 3: Cross multiply
    208,513,423.67x = 310,927,895.73 × 206,641,900.17
  4. Step 4: Simplify right side
    208,513,423.67x = 64,250,731,189,506,832
  5. Step 5: Solve for x
    x = 64,250,731,189,506,832/208,513,423.67
  6. Step 6: Final answer
    x = 308,137,145.61

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.