Home / 518,147,998.40-776,724,333.60-299,573,969.60

Finding the Fourth Proportional to 518,147,998.40, 776,724,333.60 and 299,573,969.60

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Solution

The fourth proportional to 518,147,998.40, 776,724,333.60 and 299,573,969.60 is: 449,073,223.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,147,998.40 : 776,724,333.60 = 299,573,969.60 : x
  2. Step 2: Convert to fraction form
    518,147,998.40/776,724,333.60 = 299,573,969.60/x
  3. Step 3: Cross multiply
    518,147,998.40x = 776,724,333.60 × 299,573,969.60
  4. Step 4: Simplify right side
    518,147,998.40x = 232,686,391,901,466,688
  5. Step 5: Solve for x
    x = 232,686,391,901,466,688/518,147,998.40
  6. Step 6: Final answer
    x = 449,073,223.52

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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.