Home / 512,032,407-706,379,547.96-300,231,128.40

Finding the Fourth Proportional to 512,032,407, 706,379,547.96 and 300,231,128.40

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Solution

The fourth proportional to 512,032,407, 706,379,547.96 and 300,231,128.40 is: 414,186,926.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,032,407 : 706,379,547.96 = 300,231,128.40 : x
  2. Step 2: Convert to fraction form
    512,032,407/706,379,547.96 = 300,231,128.40/x
  3. Step 3: Cross multiply
    512,032,407x = 706,379,547.96 × 300,231,128.40
  4. Step 4: Simplify right side
    512,032,407x = 212,077,128,762,712,704
  5. Step 5: Solve for x
    x = 212,077,128,762,712,704/512,032,407
  6. Step 6: Final answer
    x = 414,186,926.19

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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.