Home / 186,940,063.71-280,159,445.07-145,490,989.49

Finding the Fourth Proportional to 186,940,063.71, 280,159,445.07 and 145,490,989.49

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Solution

The fourth proportional to 186,940,063.71, 280,159,445.07 and 145,490,989.49 is: 218,041,408.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,940,063.71 : 280,159,445.07 = 145,490,989.49 : x
  2. Step 2: Convert to fraction form
    186,940,063.71/280,159,445.07 = 145,490,989.49/x
  3. Step 3: Cross multiply
    186,940,063.71x = 280,159,445.07 × 145,490,989.49
  4. Step 4: Simplify right side
    186,940,063.71x = 40,760,674,878,203,600
  5. Step 5: Solve for x
    x = 40,760,674,878,203,600/186,940,063.71
  6. Step 6: Final answer
    x = 218,041,408.94

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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.