Home / 12,597,209,219.80-18,886,743,903.30-7,078,159,005.40

Finding the Fourth Proportional to 12,597,209,219.80, 18,886,743,903.30 and 7,078,159,005.40

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Solution

The fourth proportional to 12,597,209,219.80, 18,886,743,903.30 and 7,078,159,005.40 is: 10,612,142,269.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,597,209,219.80 : 18,886,743,903.30 = 7,078,159,005.40 : x
  2. Step 2: Convert to fraction form
    12,597,209,219.80/18,886,743,903.30 = 7,078,159,005.40/x
  3. Step 3: Cross multiply
    12,597,209,219.80x = 18,886,743,903.30 × 7,078,159,005.40
  4. Step 4: Simplify right side
    12,597,209,219.80x = 133,683,376,441,826,426,880
  5. Step 5: Solve for x
    x = 133,683,376,441,826,426,880/12,597,209,219.80
  6. Step 6: Final answer
    x = 10,612,142,269.71

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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.