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Finding the Fourth Proportional to 637,699,946.40, 956,773,868.40 and 274,305,693.60

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Solution

The fourth proportional to 637,699,946.40, 956,773,868.40 and 274,305,693.60 is: 411,554,871.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,699,946.40 : 956,773,868.40 = 274,305,693.60 : x
  2. Step 2: Convert to fraction form
    637,699,946.40/956,773,868.40 = 274,305,693.60/x
  3. Step 3: Cross multiply
    637,699,946.40x = 956,773,868.40 × 274,305,693.60
  4. Step 4: Simplify right side
    637,699,946.40x = 262,448,519,589,817,152
  5. Step 5: Solve for x
    x = 262,448,519,589,817,152/637,699,946.40
  6. Step 6: Final answer
    x = 411,554,871.65

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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.