Home / 1,297,956,142.52-1,946,934,215.40-315,377,633.24

Finding the Fourth Proportional to 1,297,956,142.52, 1,946,934,215.40 and 315,377,633.24

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Solution

The fourth proportional to 1,297,956,142.52, 1,946,934,215.40 and 315,377,633.24 is: 473,066,450.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,956,142.52 : 1,946,934,215.40 = 315,377,633.24 : x
  2. Step 2: Convert to fraction form
    1,297,956,142.52/1,946,934,215.40 = 315,377,633.24/x
  3. Step 3: Cross multiply
    1,297,956,142.52x = 1,946,934,215.40 × 315,377,633.24
  4. Step 4: Simplify right side
    1,297,956,142.52x = 614,019,504,926,828,416
  5. Step 5: Solve for x
    x = 614,019,504,926,828,416/1,297,956,142.52
  6. Step 6: Final answer
    x = 473,066,450.25

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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.