Home / 211,463,750.40-317,188,645.92-86,962,070.40

Finding the Fourth Proportional to 211,463,750.40, 317,188,645.92 and 86,962,070.40

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Solution

The fourth proportional to 211,463,750.40, 317,188,645.92 and 86,962,070.40 is: 130,440,235.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,463,750.40 : 317,188,645.92 = 86,962,070.40 : x
  2. Step 2: Convert to fraction form
    211,463,750.40/317,188,645.92 = 86,962,070.40/x
  3. Step 3: Cross multiply
    211,463,750.40x = 317,188,645.92 × 86,962,070.40
  4. Step 4: Simplify right side
    211,463,750.40x = 27,583,381,356,575,716
  5. Step 5: Solve for x
    x = 27,583,381,356,575,716/211,463,750.40
  6. Step 6: Final answer
    x = 130,440,235.29

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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.