Home / 30,839,588,690.40-42,548,459,191.20-18,627,730,830.81

Finding the Fourth Proportional to 30,839,588,690.40, 42,548,459,191.20 and 18,627,730,830.81

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Solution

The fourth proportional to 30,839,588,690.40, 42,548,459,191.20 and 18,627,730,830.81 is: 25,700,123,728.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,839,588,690.40 : 42,548,459,191.20 = 18,627,730,830.81 : x
  2. Step 2: Convert to fraction form
    30,839,588,690.40/42,548,459,191.20 = 18,627,730,830.81/x
  3. Step 3: Cross multiply
    30,839,588,690.40x = 42,548,459,191.20 × 18,627,730,830.81
  4. Step 4: Simplify right side
    30,839,588,690.40x = 792,581,245,079,377,412,096
  5. Step 5: Solve for x
    x = 792,581,245,079,377,412,096/30,839,588,690.40
  6. Step 6: Final answer
    x = 25,700,123,728.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.