Home / 393,142,000.20-589,713,000.30-134,318,423.40

Finding the Fourth Proportional to 393,142,000.20, 589,713,000.30 and 134,318,423.40

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Solution

The fourth proportional to 393,142,000.20, 589,713,000.30 and 134,318,423.40 is: 201,477,635.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,142,000.20 : 589,713,000.30 = 134,318,423.40 : x
  2. Step 2: Convert to fraction form
    393,142,000.20/589,713,000.30 = 134,318,423.40/x
  3. Step 3: Cross multiply
    393,142,000.20x = 589,713,000.30 × 134,318,423.40
  4. Step 4: Simplify right side
    393,142,000.20x = 79,209,320,458,779,728
  5. Step 5: Solve for x
    x = 79,209,320,458,779,728/393,142,000.20
  6. Step 6: Final answer
    x = 201,477,635.10

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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.