Home / 711,116,699,642.40-981,172,849,955.03-402,468,058,553.01

Finding the Fourth Proportional to 711,116,699,642.40, 981,172,849,955.03 and 402,468,058,553.01

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Solution

The fourth proportional to 711,116,699,642.40, 981,172,849,955.03 and 402,468,058,553.01 is: 555,310,727,796.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,116,699,642.40 : 981,172,849,955.03 = 402,468,058,553.01 : x
  2. Step 2: Convert to fraction form
    711,116,699,642.40/981,172,849,955.03 = 402,468,058,553.01/x
  3. Step 3: Cross multiply
    711,116,699,642.40x = 981,172,849,955.03 × 402,468,058,553.01
  4. Step 4: Simplify right side
    711,116,699,642.40x = 394,890,732,026,324,735,492,096
  5. Step 5: Solve for x
    x = 394,890,732,026,324,735,492,096/711,116,699,642.40
  6. Step 6: Final answer
    x = 555,310,727,796.02

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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.