Home / 641,936,111.63-963,233,632.98-305,794,328.40

Finding the Fourth Proportional to 641,936,111.63, 963,233,632.98 and 305,794,328.40

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Solution

The fourth proportional to 641,936,111.63, 963,233,632.98 and 305,794,328.40 is: 458,848,437.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,936,111.63 : 963,233,632.98 = 305,794,328.40 : x
  2. Step 2: Convert to fraction form
    641,936,111.63/963,233,632.98 = 305,794,328.40/x
  3. Step 3: Cross multiply
    641,936,111.63x = 963,233,632.98 × 305,794,328.40
  4. Step 4: Simplify right side
    641,936,111.63x = 294,551,381,889,411,200
  5. Step 5: Solve for x
    x = 294,551,381,889,411,200/641,936,111.63
  6. Step 6: Final answer
    x = 458,848,437.65

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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.