Home / 283,731,901.21-391,549,846.81-153,351,709.21

Finding the Fourth Proportional to 283,731,901.21, 391,549,846.81 and 153,351,709.21

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Solution

The fourth proportional to 283,731,901.21, 391,549,846.81 and 153,351,709.21 is: 211,625,263.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,731,901.21 : 391,549,846.81 = 153,351,709.21 : x
  2. Step 2: Convert to fraction form
    283,731,901.21/391,549,846.81 = 153,351,709.21/x
  3. Step 3: Cross multiply
    283,731,901.21x = 391,549,846.81 × 153,351,709.21
  4. Step 4: Simplify right side
    283,731,901.21x = 60,044,838,246,502,664
  5. Step 5: Solve for x
    x = 60,044,838,246,502,664/283,731,901.21
  6. Step 6: Final answer
    x = 211,625,263.11

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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.