Home / 554,955,520.40-765,885,647.40-307,514,491.28

Finding the Fourth Proportional to 554,955,520.40, 765,885,647.40 and 307,514,491.28

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Solution

The fourth proportional to 554,955,520.40, 765,885,647.40 and 307,514,491.28 is: 424,396,058.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,955,520.40 : 765,885,647.40 = 307,514,491.28 : x
  2. Step 2: Convert to fraction form
    554,955,520.40/765,885,647.40 = 307,514,491.28/x
  3. Step 3: Cross multiply
    554,955,520.40x = 765,885,647.40 × 307,514,491.28
  4. Step 4: Simplify right side
    554,955,520.40x = 235,520,935,238,864,416
  5. Step 5: Solve for x
    x = 235,520,935,238,864,416/554,955,520.40
  6. Step 6: Final answer
    x = 424,396,058.03

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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.