Home / 711,306,341.94-981,614,374.62-389,428,939.46

Finding the Fourth Proportional to 711,306,341.94, 981,614,374.62 and 389,428,939.46

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Solution

The fourth proportional to 711,306,341.94, 981,614,374.62 and 389,428,939.46 is: 537,418,299.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,306,341.94 : 981,614,374.62 = 389,428,939.46 : x
  2. Step 2: Convert to fraction form
    711,306,341.94/981,614,374.62 = 389,428,939.46/x
  3. Step 3: Cross multiply
    711,306,341.94x = 981,614,374.62 × 389,428,939.46
  4. Step 4: Simplify right side
    711,306,341.94x = 382,269,044,866,957,696
  5. Step 5: Solve for x
    x = 382,269,044,866,957,696/711,306,341.94
  6. Step 6: Final answer
    x = 537,418,299.72

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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.