Home / 529,551,309.82-730,787,418.97-291,423,890.94

Finding the Fourth Proportional to 529,551,309.82, 730,787,418.97 and 291,423,890.94

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Solution

The fourth proportional to 529,551,309.82, 730,787,418.97 and 291,423,890.94 is: 402,168,607.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,551,309.82 : 730,787,418.97 = 291,423,890.94 : x
  2. Step 2: Convert to fraction form
    529,551,309.82/730,787,418.97 = 291,423,890.94/x
  3. Step 3: Cross multiply
    529,551,309.82x = 730,787,418.97 × 291,423,890.94
  4. Step 4: Simplify right side
    529,551,309.82x = 212,968,913,086,237,376
  5. Step 5: Solve for x
    x = 212,968,913,086,237,376/529,551,309.82
  6. Step 6: Final answer
    x = 402,168,607.91

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1.5x scale

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.