Home / 804,872,402.10-1,207,308,603.15-643,629,266.10

Finding the Fourth Proportional to 804,872,402.10, 1,207,308,603.15 and 643,629,266.10

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Solution

The fourth proportional to 804,872,402.10, 1,207,308,603.15 and 643,629,266.10 is: 965,443,899.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,872,402.10 : 1,207,308,603.15 = 643,629,266.10 : x
  2. Step 2: Convert to fraction form
    804,872,402.10/1,207,308,603.15 = 643,629,266.10/x
  3. Step 3: Cross multiply
    804,872,402.10x = 1,207,308,603.15 × 643,629,266.10
  4. Step 4: Simplify right side
    804,872,402.10x = 777,059,150,201,650,688
  5. Step 5: Solve for x
    x = 777,059,150,201,650,688/804,872,402.10
  6. Step 6: Final answer
    x = 965,443,899.15

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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.