Home / 421,486,746.48-632,226,573-329,447,901.24

Finding the Fourth Proportional to 421,486,746.48, 632,226,573 and 329,447,901.24

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Solution

The fourth proportional to 421,486,746.48, 632,226,573 and 329,447,901.24 is: 494,169,079.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,486,746.48 : 632,226,573 = 329,447,901.24 : x
  2. Step 2: Convert to fraction form
    421,486,746.48/632,226,573 = 329,447,901.24/x
  3. Step 3: Cross multiply
    421,486,746.48x = 632,226,573 × 329,447,901.24
  4. Step 4: Simplify right side
    421,486,746.48x = 208,285,717,583,007,648
  5. Step 5: Solve for x
    x = 208,285,717,583,007,648/421,486,746.48
  6. Step 6: Final answer
    x = 494,169,079.63

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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.