Home / 402,930,626.40-604,395,939.60-393,972,674.40

Finding the Fourth Proportional to 402,930,626.40, 604,395,939.60 and 393,972,674.40

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Solution

The fourth proportional to 402,930,626.40, 604,395,939.60 and 393,972,674.40 is: 590,959,011.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,930,626.40 : 604,395,939.60 = 393,972,674.40 : x
  2. Step 2: Convert to fraction form
    402,930,626.40/604,395,939.60 = 393,972,674.40/x
  3. Step 3: Cross multiply
    402,930,626.40x = 604,395,939.60 × 393,972,674.40
  4. Step 4: Simplify right side
    402,930,626.40x = 238,115,484,720,712,864
  5. Step 5: Solve for x
    x = 238,115,484,720,712,864/402,930,626.40
  6. Step 6: Final answer
    x = 590,959,011.60

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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.