Home / 186,939,993.45-280,159,339.51-145,490,919.29

Finding the Fourth Proportional to 186,939,993.45, 280,159,339.51 and 145,490,919.29

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Solution

The fourth proportional to 186,939,993.45, 280,159,339.51 and 145,490,919.29 is: 218,041,303.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,939,993.45 : 280,159,339.51 = 145,490,919.29 : x
  2. Step 2: Convert to fraction form
    186,939,993.45/280,159,339.51 = 145,490,919.29/x
  3. Step 3: Cross multiply
    186,939,993.45x = 280,159,339.51 × 145,490,919.29
  4. Step 4: Simplify right side
    186,939,993.45x = 40,760,639,851,224,592
  5. Step 5: Solve for x
    x = 40,760,639,851,224,592/186,939,993.45
  6. Step 6: Final answer
    x = 218,041,303.52

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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.