Home / 236,329,405.20-354,859,061.40-128,833,981.20

Finding the Fourth Proportional to 236,329,405.20, 354,859,061.40 and 128,833,981.20

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Solution

The fourth proportional to 236,329,405.20, 354,859,061.40 and 128,833,981.20 is: 193,449,924.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,329,405.20 : 354,859,061.40 = 128,833,981.20 : x
  2. Step 2: Convert to fraction form
    236,329,405.20/354,859,061.40 = 128,833,981.20/x
  3. Step 3: Cross multiply
    236,329,405.20x = 354,859,061.40 × 128,833,981.20
  4. Step 4: Simplify right side
    236,329,405.20x = 45,717,905,645,057,240
  5. Step 5: Solve for x
    x = 45,717,905,645,057,240/236,329,405.20
  6. Step 6: Final answer
    x = 193,449,924.72

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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.