Home / 659,736,610.59-989,125,108.70-309,802,360.87

Finding the Fourth Proportional to 659,736,610.59, 989,125,108.70 and 309,802,360.87

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Solution

The fourth proportional to 659,736,610.59, 989,125,108.70 and 309,802,360.87 is: 464,478,231.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,736,610.59 : 989,125,108.70 = 309,802,360.87 : x
  2. Step 2: Convert to fraction form
    659,736,610.59/989,125,108.70 = 309,802,360.87/x
  3. Step 3: Cross multiply
    659,736,610.59x = 989,125,108.70 × 309,802,360.87
  4. Step 4: Simplify right side
    659,736,610.59x = 306,433,293,870,742,784
  5. Step 5: Solve for x
    x = 306,433,293,870,742,784/659,736,610.59
  6. Step 6: Final answer
    x = 464,478,231.09

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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.