Home / 509,341,333.20-764,011,999.80-164,306,216.40

Finding the Fourth Proportional to 509,341,333.20, 764,011,999.80 and 164,306,216.40

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Solution

The fourth proportional to 509,341,333.20, 764,011,999.80 and 164,306,216.40 is: 246,459,324.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,341,333.20 : 764,011,999.80 = 164,306,216.40 : x
  2. Step 2: Convert to fraction form
    509,341,333.20/764,011,999.80 = 164,306,216.40/x
  3. Step 3: Cross multiply
    509,341,333.20x = 764,011,999.80 × 164,306,216.40
  4. Step 4: Simplify right side
    509,341,333.20x = 125,531,920,971,335,552
  5. Step 5: Solve for x
    x = 125,531,920,971,335,552/509,341,333.20
  6. Step 6: Final answer
    x = 246,459,324.60

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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.