Home / 457,663,138.76-631,709,543.40-298,917,530.10

Finding the Fourth Proportional to 457,663,138.76, 631,709,543.40 and 298,917,530.10

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Solution

The fourth proportional to 457,663,138.76, 631,709,543.40 and 298,917,530.10 is: 412,593,981.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,663,138.76 : 631,709,543.40 = 298,917,530.10 : x
  2. Step 2: Convert to fraction form
    457,663,138.76/631,709,543.40 = 298,917,530.10/x
  3. Step 3: Cross multiply
    457,663,138.76x = 631,709,543.40 × 298,917,530.10
  4. Step 4: Simplify right side
    457,663,138.76x = 188,829,056,453,726,752
  5. Step 5: Solve for x
    x = 188,829,056,453,726,752/457,663,138.76
  6. Step 6: Final answer
    x = 412,593,981.17

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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.