Home / 157,440,981.90-236,205,709.65-76,664,585.10

Finding the Fourth Proportional to 157,440,981.90, 236,205,709.65 and 76,664,585.10

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Solution

The fourth proportional to 157,440,981.90, 236,205,709.65 and 76,664,585.10 is: 115,018,418.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,440,981.90 : 236,205,709.65 = 76,664,585.10 : x
  2. Step 2: Convert to fraction form
    157,440,981.90/236,205,709.65 = 76,664,585.10/x
  3. Step 3: Cross multiply
    157,440,981.90x = 236,205,709.65 × 76,664,585.10
  4. Step 4: Simplify right side
    157,440,981.90x = 18,108,612,728,568,316
  5. Step 5: Solve for x
    x = 18,108,612,728,568,316/157,440,981.90
  6. Step 6: Final answer
    x = 115,018,418.39

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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.