Home / 459,609,018.12-634,456,151.92-308,989,028

Finding the Fourth Proportional to 459,609,018.12, 634,456,151.92 and 308,989,028

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Solution

The fourth proportional to 459,609,018.12, 634,456,151.92 and 308,989,028 is: 426,536,429.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,609,018.12 : 634,456,151.92 = 308,989,028 : x
  2. Step 2: Convert to fraction form
    459,609,018.12/634,456,151.92 = 308,989,028/x
  3. Step 3: Cross multiply
    459,609,018.12x = 634,456,151.92 × 308,989,028
  4. Step 4: Simplify right side
    459,609,018.12x = 196,039,989,690,381,120
  5. Step 5: Solve for x
    x = 196,039,989,690,381,120/459,609,018.12
  6. Step 6: Final answer
    x = 426,536,429.79

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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.