Home / 20,124,352,672.60-30,186,529,008.90-12,795,852,141.40

Finding the Fourth Proportional to 20,124,352,672.60, 30,186,529,008.90 and 12,795,852,141.40

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Solution

The fourth proportional to 20,124,352,672.60, 30,186,529,008.90 and 12,795,852,141.40 is: 19,193,778,212.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,124,352,672.60 : 30,186,529,008.90 = 12,795,852,141.40 : x
  2. Step 2: Convert to fraction form
    20,124,352,672.60/30,186,529,008.90 = 12,795,852,141.40/x
  3. Step 3: Cross multiply
    20,124,352,672.60x = 30,186,529,008.90 × 12,795,852,141.40
  4. Step 4: Simplify right side
    20,124,352,672.60x = 386,262,361,859,966,304,256
  5. Step 5: Solve for x
    x = 386,262,361,859,966,304,256/20,124,352,672.60
  6. Step 6: Final answer
    x = 19,193,778,212.10

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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.