Home / 790,566,218.90-1,090,981,485.50-438,164,960.79

Finding the Fourth Proportional to 790,566,218.90, 1,090,981,485.50 and 438,164,960.79

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Solution

The fourth proportional to 790,566,218.90, 1,090,981,485.50 and 438,164,960.79 is: 604,667,703.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,566,218.90 : 1,090,981,485.50 = 438,164,960.79 : x
  2. Step 2: Convert to fraction form
    790,566,218.90/1,090,981,485.50 = 438,164,960.79/x
  3. Step 3: Cross multiply
    790,566,218.90x = 1,090,981,485.50 × 438,164,960.79
  4. Step 4: Simplify right side
    790,566,218.90x = 478,029,859,816,723,456
  5. Step 5: Solve for x
    x = 478,029,859,816,723,456/790,566,218.90
  6. Step 6: Final answer
    x = 604,667,703.21

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.