Home / 529,345,670.69-730,492,994.21-291,185,739.90

Finding the Fourth Proportional to 529,345,670.69, 730,492,994.21 and 291,185,739.90

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Solution

The fourth proportional to 529,345,670.69, 730,492,994.21 and 291,185,739.90 is: 401,834,103.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,345,670.69 : 730,492,994.21 = 291,185,739.90 : x
  2. Step 2: Convert to fraction form
    529,345,670.69/730,492,994.21 = 291,185,739.90/x
  3. Step 3: Cross multiply
    529,345,670.69x = 730,492,994.21 × 291,185,739.90
  4. Step 4: Simplify right side
    529,345,670.69x = 212,709,143,009,349,344
  5. Step 5: Solve for x
    x = 212,709,143,009,349,344/529,345,670.69
  6. Step 6: Final answer
    x = 401,834,103.47

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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.