Home / 283,731,905.21-391,549,852.31-153,351,713.21

Finding the Fourth Proportional to 283,731,905.21, 391,549,852.31 and 153,351,713.21

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Solution

The fourth proportional to 283,731,905.21, 391,549,852.31 and 153,351,713.21 is: 211,625,268.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,731,905.21 : 391,549,852.31 = 153,351,713.21 : x
  2. Step 2: Convert to fraction form
    283,731,905.21/391,549,852.31 = 153,351,713.21/x
  3. Step 3: Cross multiply
    283,731,905.21x = 391,549,852.31 × 153,351,713.21
  4. Step 4: Simplify right side
    283,731,905.21x = 60,044,840,656,136,472
  5. Step 5: Solve for x
    x = 60,044,840,656,136,472/283,731,905.21
  6. Step 6: Final answer
    x = 211,625,268.62

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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.