Home / 608,759,375.84-913,128,376.80-421,840,947.68

Finding the Fourth Proportional to 608,759,375.84, 913,128,376.80 and 421,840,947.68

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Solution

The fourth proportional to 608,759,375.84, 913,128,376.80 and 421,840,947.68 is: 632,754,015.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,759,375.84 : 913,128,376.80 = 421,840,947.68 : x
  2. Step 2: Convert to fraction form
    608,759,375.84/913,128,376.80 = 421,840,947.68/x
  3. Step 3: Cross multiply
    608,759,375.84x = 913,128,376.80 × 421,840,947.68
  4. Step 4: Simplify right side
    608,759,375.84x = 385,194,939,822,812,096
  5. Step 5: Solve for x
    x = 385,194,939,822,812,096/608,759,375.84
  6. Step 6: Final answer
    x = 632,754,015.97

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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.