Home / 430,628,774.40-645,911,916.30-168,263,992.62

Finding the Fourth Proportional to 430,628,774.40, 645,911,916.30 and 168,263,992.62

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Solution

The fourth proportional to 430,628,774.40, 645,911,916.30 and 168,263,992.62 is: 252,383,780.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,628,774.40 : 645,911,916.30 = 168,263,992.62 : x
  2. Step 2: Convert to fraction form
    430,628,774.40/645,911,916.30 = 168,263,992.62/x
  3. Step 3: Cross multiply
    430,628,774.40x = 645,911,916.30 × 168,263,992.62
  4. Step 4: Simplify right side
    430,628,774.40x = 108,683,717,917,473,248
  5. Step 5: Solve for x
    x = 108,683,717,917,473,248/430,628,774.40
  6. Step 6: Final answer
    x = 252,383,780.13

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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.