Home / 711,116,699,650.55-981,172,849,966.20-402,468,058,561.16

Finding the Fourth Proportional to 711,116,699,650.55, 981,172,849,966.20 and 402,468,058,561.16

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Solution

The fourth proportional to 711,116,699,650.55, 981,172,849,966.20 and 402,468,058,561.16 is: 555,310,727,807.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,116,699,650.55 : 981,172,849,966.20 = 402,468,058,561.16 : x
  2. Step 2: Convert to fraction form
    711,116,699,650.55/981,172,849,966.20 = 402,468,058,561.16/x
  3. Step 3: Cross multiply
    711,116,699,650.55x = 981,172,849,966.20 × 402,468,058,561.16
  4. Step 4: Simplify right side
    711,116,699,650.55x = 394,890,732,038,816,782,090,240
  5. Step 5: Solve for x
    x = 394,890,732,038,816,782,090,240/711,116,699,650.55
  6. Step 6: Final answer
    x = 555,310,727,807.22

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Double scale
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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.