Home / 790,566,217.40-1,090,981,483.43-438,164,959.29

Finding the Fourth Proportional to 790,566,217.40, 1,090,981,483.43 and 438,164,959.29

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Solution

The fourth proportional to 790,566,217.40, 1,090,981,483.43 and 438,164,959.29 is: 604,667,701.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,566,217.40 : 1,090,981,483.43 = 438,164,959.29 : x
  2. Step 2: Convert to fraction form
    790,566,217.40/1,090,981,483.43 = 438,164,959.29/x
  3. Step 3: Cross multiply
    790,566,217.40x = 1,090,981,483.43 × 438,164,959.29
  4. Step 4: Simplify right side
    790,566,217.40x = 478,029,857,265,604,032
  5. Step 5: Solve for x
    x = 478,029,857,265,604,032/790,566,217.40
  6. Step 6: Final answer
    x = 604,667,701.13

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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.