Home / 484,984,858.80-727,723,009.80-212,358,298.80

Finding the Fourth Proportional to 484,984,858.80, 727,723,009.80 and 212,358,298.80

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Solution

The fourth proportional to 484,984,858.80, 727,723,009.80 and 212,358,298.80 is: 318,645,041.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,984,858.80 : 727,723,009.80 = 212,358,298.80 : x
  2. Step 2: Convert to fraction form
    484,984,858.80/727,723,009.80 = 212,358,298.80/x
  3. Step 3: Cross multiply
    484,984,858.80x = 727,723,009.80 × 212,358,298.80
  4. Step 4: Simplify right side
    484,984,858.80x = 154,538,020,358,743,712
  5. Step 5: Solve for x
    x = 154,538,020,358,743,712/484,984,858.80
  6. Step 6: Final answer
    x = 318,645,041.29

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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.