Home / 1,297,956,140.52-1,946,934,212.40-315,377,631.24

Finding the Fourth Proportional to 1,297,956,140.52, 1,946,934,212.40 and 315,377,631.24

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Solution

The fourth proportional to 1,297,956,140.52, 1,946,934,212.40 and 315,377,631.24 is: 473,066,447.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,956,140.52 : 1,946,934,212.40 = 315,377,631.24 : x
  2. Step 2: Convert to fraction form
    1,297,956,140.52/1,946,934,212.40 = 315,377,631.24/x
  3. Step 3: Cross multiply
    1,297,956,140.52x = 1,946,934,212.40 × 315,377,631.24
  4. Step 4: Simplify right side
    1,297,956,140.52x = 614,019,500,086,827,136
  5. Step 5: Solve for x
    x = 614,019,500,086,827,136/1,297,956,140.52
  6. Step 6: Final answer
    x = 473,066,447.25

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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.