Home / 399,178,679.40-598,768,019.10-245,325,853.80

Finding the Fourth Proportional to 399,178,679.40, 598,768,019.10 and 245,325,853.80

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Solution

The fourth proportional to 399,178,679.40, 598,768,019.10 and 245,325,853.80 is: 367,988,780.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,178,679.40 : 598,768,019.10 = 245,325,853.80 : x
  2. Step 2: Convert to fraction form
    399,178,679.40/598,768,019.10 = 245,325,853.80/x
  3. Step 3: Cross multiply
    399,178,679.40x = 598,768,019.10 × 245,325,853.80
  4. Step 4: Simplify right side
    399,178,679.40x = 146,893,275,513,842,208
  5. Step 5: Solve for x
    x = 146,893,275,513,842,208/399,178,679.40
  6. Step 6: Final answer
    x = 367,988,780.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.