Home / 631,152,940.70-946,729,411.05-355,653,926.30

Finding the Fourth Proportional to 631,152,940.70, 946,729,411.05 and 355,653,926.30

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Solution

The fourth proportional to 631,152,940.70, 946,729,411.05 and 355,653,926.30 is: 533,480,889.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,152,940.70 : 946,729,411.05 = 355,653,926.30 : x
  2. Step 2: Convert to fraction form
    631,152,940.70/946,729,411.05 = 355,653,926.30/x
  3. Step 3: Cross multiply
    631,152,940.70x = 946,729,411.05 × 355,653,926.30
  4. Step 4: Simplify right side
    631,152,940.70x = 336,708,032,183,619,072
  5. Step 5: Solve for x
    x = 336,708,032,183,619,072/631,152,940.70
  6. Step 6: Final answer
    x = 533,480,889.45

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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.