Home / 867,771,502.08-1,301,513,336.64-285,512,847.36

Finding the Fourth Proportional to 867,771,502.08, 1,301,513,336.64 and 285,512,847.36

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Solution

The fourth proportional to 867,771,502.08, 1,301,513,336.64 and 285,512,847.36 is: 428,221,919.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,771,502.08 : 1,301,513,336.64 = 285,512,847.36 : x
  2. Step 2: Convert to fraction form
    867,771,502.08/1,301,513,336.64 = 285,512,847.36/x
  3. Step 3: Cross multiply
    867,771,502.08x = 1,301,513,336.64 × 285,512,847.36
  4. Step 4: Simplify right side
    867,771,502.08x = 371,598,778,621,100,672
  5. Step 5: Solve for x
    x = 371,598,778,621,100,672/867,771,502.08
  6. Step 6: Final answer
    x = 428,221,919.86

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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.