Home / 711,347,661.48-981,762,454.80-409,875,233.88

Finding the Fourth Proportional to 711,347,661.48, 981,762,454.80 and 409,875,233.88

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Solution

The fourth proportional to 711,347,661.48, 981,762,454.80 and 409,875,233.88 is: 565,686,987.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,347,661.48 : 981,762,454.80 = 409,875,233.88 : x
  2. Step 2: Convert to fraction form
    711,347,661.48/981,762,454.80 = 409,875,233.88/x
  3. Step 3: Cross multiply
    711,347,661.48x = 981,762,454.80 × 409,875,233.88
  4. Step 4: Simplify right side
    711,347,661.48x = 402,400,115,775,752,896
  5. Step 5: Solve for x
    x = 402,400,115,775,752,896/711,347,661.48
  6. Step 6: Final answer
    x = 565,686,987.62

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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.