Home / 313,536,649.96-432,708,123.72-172,432,712.20

Finding the Fourth Proportional to 313,536,649.96, 432,708,123.72 and 172,432,712.20

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Solution

The fourth proportional to 313,536,649.96, 432,708,123.72 and 172,432,712.20 is: 237,972,292.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,536,649.96 : 432,708,123.72 = 172,432,712.20 : x
  2. Step 2: Convert to fraction form
    313,536,649.96/432,708,123.72 = 172,432,712.20/x
  3. Step 3: Cross multiply
    313,536,649.96x = 432,708,123.72 × 172,432,712.20
  4. Step 4: Simplify right side
    313,536,649.96x = 74,613,035,364,012,752
  5. Step 5: Solve for x
    x = 74,613,035,364,012,752/313,536,649.96
  6. Step 6: Final answer
    x = 237,972,292.47

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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.