Home / 660,690,535.95-911,494,889.67-378,282,046.34

Finding the Fourth Proportional to 660,690,535.95, 911,494,889.67 and 378,282,046.34

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Solution

The fourth proportional to 660,690,535.95, 911,494,889.67 and 378,282,046.34 is: 521,881,476.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,690,535.95 : 911,494,889.67 = 378,282,046.34 : x
  2. Step 2: Convert to fraction form
    660,690,535.95/911,494,889.67 = 378,282,046.34/x
  3. Step 3: Cross multiply
    660,690,535.95x = 911,494,889.67 × 378,282,046.34
  4. Step 4: Simplify right side
    660,690,535.95x = 344,802,152,088,262,592
  5. Step 5: Solve for x
    x = 344,802,152,088,262,592/660,690,535.95
  6. Step 6: Final answer
    x = 521,881,476.01

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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.