Home / 514,081,396.52-709,412,429.82-279,126,679.40

Finding the Fourth Proportional to 514,081,396.52, 709,412,429.82 and 279,126,679.40

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Solution

The fourth proportional to 514,081,396.52, 709,412,429.82 and 279,126,679.40 is: 385,184,014.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,081,396.52 : 709,412,429.82 = 279,126,679.40 : x
  2. Step 2: Convert to fraction form
    514,081,396.52/709,412,429.82 = 279,126,679.40/x
  3. Step 3: Cross multiply
    514,081,396.52x = 709,412,429.82 × 279,126,679.40
  4. Step 4: Simplify right side
    514,081,396.52x = 198,015,935,860,742,144
  5. Step 5: Solve for x
    x = 198,015,935,860,742,144/514,081,396.52
  6. Step 6: Final answer
    x = 385,184,014.05

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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.