Home / 711,116,699,641.40-981,172,849,953.65-402,468,058,552.01

Finding the Fourth Proportional to 711,116,699,641.40, 981,172,849,953.65 and 402,468,058,552.01

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Solution

The fourth proportional to 711,116,699,641.40, 981,172,849,953.65 and 402,468,058,552.01 is: 555,310,727,794.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,116,699,641.40 : 981,172,849,953.65 = 402,468,058,552.01 : x
  2. Step 2: Convert to fraction form
    711,116,699,641.40/981,172,849,953.65 = 402,468,058,552.01/x
  3. Step 3: Cross multiply
    711,116,699,641.40x = 981,172,849,953.65 × 402,468,058,552.01
  4. Step 4: Simplify right side
    711,116,699,641.40x = 394,890,732,024,788,143,833,088
  5. Step 5: Solve for x
    x = 394,890,732,024,788,143,833,088/711,116,699,641.40
  6. Step 6: Final answer
    x = 555,310,727,794.64

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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.