Home / 554,955,521.40-765,885,648.78-307,514,492.28

Finding the Fourth Proportional to 554,955,521.40, 765,885,648.78 and 307,514,492.28

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Solution

The fourth proportional to 554,955,521.40, 765,885,648.78 and 307,514,492.28 is: 424,396,059.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,955,521.40 : 765,885,648.78 = 307,514,492.28 : x
  2. Step 2: Convert to fraction form
    554,955,521.40/765,885,648.78 = 307,514,492.28/x
  3. Step 3: Cross multiply
    554,955,521.40x = 765,885,648.78 × 307,514,492.28
  4. Step 4: Simplify right side
    554,955,521.40x = 235,520,936,429,120,064
  5. Step 5: Solve for x
    x = 235,520,936,429,120,064/554,955,521.40
  6. Step 6: Final answer
    x = 424,396,059.41

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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.