Home / 642,105,465.90-886,117,152.51-363,704,603.82

Finding the Fourth Proportional to 642,105,465.90, 886,117,152.51 and 363,704,603.82

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Solution

The fourth proportional to 642,105,465.90, 886,117,152.51 and 363,704,603.82 is: 501,918,929.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,105,465.90 : 886,117,152.51 = 363,704,603.82 : x
  2. Step 2: Convert to fraction form
    642,105,465.90/886,117,152.51 = 363,704,603.82/x
  3. Step 3: Cross multiply
    642,105,465.90x = 886,117,152.51 × 363,704,603.82
  4. Step 4: Simplify right side
    642,105,465.90x = 322,284,887,891,756,032
  5. Step 5: Solve for x
    x = 322,284,887,891,756,032/642,105,465.90
  6. Step 6: Final answer
    x = 501,918,929.22

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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.