Home / 210,502,693.60-315,554,974.80-124,307,288.80

Finding the Fourth Proportional to 210,502,693.60, 315,554,974.80 and 124,307,288.80

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Solution

The fourth proportional to 210,502,693.60, 315,554,974.80 and 124,307,288.80 is: 186,343,379.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,502,693.60 : 315,554,974.80 = 124,307,288.80 : x
  2. Step 2: Convert to fraction form
    210,502,693.60/315,554,974.80 = 124,307,288.80/x
  3. Step 3: Cross multiply
    210,502,693.60x = 315,554,974.80 × 124,307,288.80
  4. Step 4: Simplify right side
    210,502,693.60x = 39,225,783,384,740,320
  5. Step 5: Solve for x
    x = 39,225,783,384,740,320/210,502,693.60
  6. Step 6: Final answer
    x = 186,343,379.81

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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.