Home / 728,698,481,362.55-1,005,635,514,702.50-403,537,773,174.72

Finding the Fourth Proportional to 728,698,481,362.55, 1,005,635,514,702.50 and 403,537,773,174.72

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Solution

The fourth proportional to 728,698,481,362.55, 1,005,635,514,702.50 and 403,537,773,174.72 is: 556,899,632,162.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,698,481,362.55 : 1,005,635,514,702.50 = 403,537,773,174.72 : x
  2. Step 2: Convert to fraction form
    728,698,481,362.55/1,005,635,514,702.50 = 403,537,773,174.72/x
  3. Step 3: Cross multiply
    728,698,481,362.55x = 1,005,635,514,702.50 × 403,537,773,174.72
  4. Step 4: Simplify right side
    728,698,481,362.55x = 405,811,916,228,460,195,872,768
  5. Step 5: Solve for x
    x = 405,811,916,228,460,195,872,768/728,698,481,362.55
  6. Step 6: Final answer
    x = 556,899,632,162.89

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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.