Home / 28,082,014,742.40-42,123,022,113.60-9,443,315,990.40

Finding the Fourth Proportional to 28,082,014,742.40, 42,123,022,113.60 and 9,443,315,990.40

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Solution

The fourth proportional to 28,082,014,742.40, 42,123,022,113.60 and 9,443,315,990.40 is: 14,164,973,985.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,082,014,742.40 : 42,123,022,113.60 = 9,443,315,990.40 : x
  2. Step 2: Convert to fraction form
    28,082,014,742.40/42,123,022,113.60 = 9,443,315,990.40/x
  3. Step 3: Cross multiply
    28,082,014,742.40x = 42,123,022,113.60 × 9,443,315,990.40
  4. Step 4: Simplify right side
    28,082,014,742.40x = 397,781,008,289,331,675,136
  5. Step 5: Solve for x
    x = 397,781,008,289,331,675,136/28,082,014,742.40
  6. Step 6: Final answer
    x = 14,164,973,985.60

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Double scale
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1.5x scale

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.