Home / 638,481,952.72-881,030,222.76-360,006,881.68

Finding the Fourth Proportional to 638,481,952.72, 881,030,222.76 and 360,006,881.68

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Solution

The fourth proportional to 638,481,952.72, 881,030,222.76 and 360,006,881.68 is: 496,767,280.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,481,952.72 : 881,030,222.76 = 360,006,881.68 : x
  2. Step 2: Convert to fraction form
    638,481,952.72/881,030,222.76 = 360,006,881.68/x
  3. Step 3: Cross multiply
    638,481,952.72x = 881,030,222.76 × 360,006,881.68
  4. Step 4: Simplify right side
    638,481,952.72x = 317,176,943,161,663,360
  5. Step 5: Solve for x
    x = 317,176,943,161,663,360/638,481,952.72
  6. Step 6: Final answer
    x = 496,767,280.28

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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.