Home / 407,400,752.80-611,101,129.20-148,624,415.20

Finding the Fourth Proportional to 407,400,752.80, 611,101,129.20 and 148,624,415.20

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Solution

The fourth proportional to 407,400,752.80, 611,101,129.20 and 148,624,415.20 is: 222,936,622.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,400,752.80 : 611,101,129.20 = 148,624,415.20 : x
  2. Step 2: Convert to fraction form
    407,400,752.80/611,101,129.20 = 148,624,415.20/x
  3. Step 3: Cross multiply
    407,400,752.80x = 611,101,129.20 × 148,624,415.20
  4. Step 4: Simplify right side
    407,400,752.80x = 90,824,547,955,409,648
  5. Step 5: Solve for x
    x = 90,824,547,955,409,648/407,400,752.80
  6. Step 6: Final answer
    x = 222,936,622.80

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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.