Home / 509,970,813.90-764,956,220.85-164,959,316.70

Finding the Fourth Proportional to 509,970,813.90, 764,956,220.85 and 164,959,316.70

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Solution

The fourth proportional to 509,970,813.90, 764,956,220.85 and 164,959,316.70 is: 247,438,975.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,970,813.90 : 764,956,220.85 = 164,959,316.70 : x
  2. Step 2: Convert to fraction form
    509,970,813.90/764,956,220.85 = 164,959,316.70/x
  3. Step 3: Cross multiply
    509,970,813.90x = 764,956,220.85 × 164,959,316.70
  4. Step 4: Simplify right side
    509,970,813.90x = 126,186,655,496,830,288
  5. Step 5: Solve for x
    x = 126,186,655,496,830,288/509,970,813.90
  6. Step 6: Final answer
    x = 247,438,975.05

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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.