Home / 459,084,698.40-689,970,740.40-399,962,215.20

Finding the Fourth Proportional to 459,084,698.40, 689,970,740.40 and 399,962,215.20

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Solution

The fourth proportional to 459,084,698.40, 689,970,740.40 and 399,962,215.20 is: 601,113,970.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,084,698.40 : 689,970,740.40 = 399,962,215.20 : x
  2. Step 2: Convert to fraction form
    459,084,698.40/689,970,740.40 = 399,962,215.20/x
  3. Step 3: Cross multiply
    459,084,698.40x = 689,970,740.40 × 399,962,215.20
  4. Step 4: Simplify right side
    459,084,698.40x = 275,962,225,753,568,128
  5. Step 5: Solve for x
    x = 275,962,225,753,568,128/459,084,698.40
  6. Step 6: Final answer
    x = 601,113,970.29

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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.