Home / 155,229,311.40-232,843,967.10-78,701,807.40

Finding the Fourth Proportional to 155,229,311.40, 232,843,967.10 and 78,701,807.40

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Solution

The fourth proportional to 155,229,311.40, 232,843,967.10 and 78,701,807.40 is: 118,052,711.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,229,311.40 : 232,843,967.10 = 78,701,807.40 : x
  2. Step 2: Convert to fraction form
    155,229,311.40/232,843,967.10 = 78,701,807.40/x
  3. Step 3: Cross multiply
    155,229,311.40x = 232,843,967.10 × 78,701,807.40
  4. Step 4: Simplify right side
    155,229,311.40x = 18,325,241,052,956,136
  5. Step 5: Solve for x
    x = 18,325,241,052,956,136/155,229,311.40
  6. Step 6: Final answer
    x = 118,052,711.10

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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.