Home / 12,020,118,438.64-18,030,178,218.45-8,234,778,123.29

Finding the Fourth Proportional to 12,020,118,438.64, 18,030,178,218.45 and 8,234,778,123.29

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Solution

The fourth proportional to 12,020,118,438.64, 18,030,178,218.45 and 8,234,778,123.29 is: 12,352,167,568.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,020,118,438.64 : 18,030,178,218.45 = 8,234,778,123.29 : x
  2. Step 2: Convert to fraction form
    12,020,118,438.64/18,030,178,218.45 = 8,234,778,123.29/x
  3. Step 3: Cross multiply
    12,020,118,438.64x = 18,030,178,218.45 × 8,234,778,123.29
  4. Step 4: Simplify right side
    12,020,118,438.64x = 148,474,517,152,311,934,976
  5. Step 5: Solve for x
    x = 148,474,517,152,311,934,976/12,020,118,438.64
  6. Step 6: Final answer
    x = 12,352,167,568.92

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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.