Home / 511,534,167.32-705,888,167.19-288,502,518.58

Finding the Fourth Proportional to 511,534,167.32, 705,888,167.19 and 288,502,518.58

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Solution

The fourth proportional to 511,534,167.32, 705,888,167.19 and 288,502,518.58 is: 398,117,128.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,534,167.32 : 705,888,167.19 = 288,502,518.58 : x
  2. Step 2: Convert to fraction form
    511,534,167.32/705,888,167.19 = 288,502,518.58/x
  3. Step 3: Cross multiply
    511,534,167.32x = 705,888,167.19 × 288,502,518.58
  4. Step 4: Simplify right side
    511,534,167.32x = 203,650,514,070,135,136
  5. Step 5: Solve for x
    x = 203,650,514,070,135,136/511,534,167.32
  6. Step 6: Final answer
    x = 398,117,128.98

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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.