Home / 917,732,121.27-1,266,470,509.58-500,044,406.55

Finding the Fourth Proportional to 917,732,121.27, 1,266,470,509.58 and 500,044,406.55

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Solution

The fourth proportional to 917,732,121.27, 1,266,470,509.58 and 500,044,406.55 is: 690,061,380.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,732,121.27 : 1,266,470,509.58 = 500,044,406.55 : x
  2. Step 2: Convert to fraction form
    917,732,121.27/1,266,470,509.58 = 500,044,406.55/x
  3. Step 3: Cross multiply
    917,732,121.27x = 1,266,470,509.58 × 500,044,406.55
  4. Step 4: Simplify right side
    917,732,121.27x = 633,291,494,376,007,168
  5. Step 5: Solve for x
    x = 633,291,494,376,007,168/917,732,121.27
  6. Step 6: Final answer
    x = 690,061,380.33

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1.5x scale

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.