Home / 648,619,431.89-895,090,358.99-351,254,869.25

Finding the Fourth Proportional to 648,619,431.89, 895,090,358.99 and 351,254,869.25

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Solution

The fourth proportional to 648,619,431.89, 895,090,358.99 and 351,254,869.25 is: 484,729,305.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,619,431.89 : 895,090,358.99 = 351,254,869.25 : x
  2. Step 2: Convert to fraction form
    648,619,431.89/895,090,358.99 = 351,254,869.25/x
  3. Step 3: Cross multiply
    648,619,431.89x = 895,090,358.99 × 351,254,869.25
  4. Step 4: Simplify right side
    648,619,431.89x = 314,404,847,010,370,688
  5. Step 5: Solve for x
    x = 314,404,847,010,370,688/648,619,431.89
  6. Step 6: Final answer
    x = 484,729,305.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.