Home / 442,869,138.30-664,303,707.45-417,359,970.30

Finding the Fourth Proportional to 442,869,138.30, 664,303,707.45 and 417,359,970.30

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Solution

The fourth proportional to 442,869,138.30, 664,303,707.45 and 417,359,970.30 is: 626,039,955.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,869,138.30 : 664,303,707.45 = 417,359,970.30 : x
  2. Step 2: Convert to fraction form
    442,869,138.30/664,303,707.45 = 417,359,970.30/x
  3. Step 3: Cross multiply
    442,869,138.30x = 664,303,707.45 × 417,359,970.30
  4. Step 4: Simplify right side
    442,869,138.30x = 277,253,775,611,511,904
  5. Step 5: Solve for x
    x = 277,253,775,611,511,904/442,869,138.30
  6. Step 6: Final answer
    x = 626,039,955.45

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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.