Home / 426,808,670.10-638,459,249.82-340,715,228.10

Finding the Fourth Proportional to 426,808,670.10, 638,459,249.82 and 340,715,228.10

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Solution

The fourth proportional to 426,808,670.10, 638,459,249.82 and 340,715,228.10 is: 509,672,844.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,808,670.10 : 638,459,249.82 = 340,715,228.10 : x
  2. Step 2: Convert to fraction form
    426,808,670.10/638,459,249.82 = 340,715,228.10/x
  3. Step 3: Cross multiply
    426,808,670.10x = 638,459,249.82 × 340,715,228.10
  4. Step 4: Simplify right side
    426,808,670.10x = 217,532,788,934,976,224
  5. Step 5: Solve for x
    x = 217,532,788,934,976,224/426,808,670.10
  6. Step 6: Final answer
    x = 509,672,844.47

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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.