Home / 661,564,571.85-913,012,472.32-379,333,269.79

Finding the Fourth Proportional to 661,564,571.85, 913,012,472.32 and 379,333,269.79

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Solution

The fourth proportional to 661,564,571.85, 913,012,472.32 and 379,333,269.79 is: 523,510,510.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,564,571.85 : 913,012,472.32 = 379,333,269.79 : x
  2. Step 2: Convert to fraction form
    661,564,571.85/913,012,472.32 = 379,333,269.79/x
  3. Step 3: Cross multiply
    661,564,571.85x = 913,012,472.32 × 379,333,269.79
  4. Step 4: Simplify right side
    661,564,571.85x = 346,336,006,480,966,592
  5. Step 5: Solve for x
    x = 346,336,006,480,966,592/661,564,571.85
  6. Step 6: Final answer
    x = 523,510,510.11

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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.