Home / 514,081,395.52-709,412,428.44-279,126,678.40

Finding the Fourth Proportional to 514,081,395.52, 709,412,428.44 and 279,126,678.40

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Solution

The fourth proportional to 514,081,395.52, 709,412,428.44 and 279,126,678.40 is: 385,184,012.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,081,395.52 : 709,412,428.44 = 279,126,678.40 : x
  2. Step 2: Convert to fraction form
    514,081,395.52/709,412,428.44 = 279,126,678.40/x
  3. Step 3: Cross multiply
    514,081,395.52x = 709,412,428.44 × 279,126,678.40
  4. Step 4: Simplify right side
    514,081,395.52x = 198,015,934,766,134,880
  5. Step 5: Solve for x
    x = 198,015,934,766,134,880/514,081,395.52
  6. Step 6: Final answer
    x = 385,184,012.67

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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.