Home / 745,039,807.20-1,117,559,710.80-253,589,742.45

Finding the Fourth Proportional to 745,039,807.20, 1,117,559,710.80 and 253,589,742.45

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Solution

The fourth proportional to 745,039,807.20, 1,117,559,710.80 and 253,589,742.45 is: 380,384,613.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,039,807.20 : 1,117,559,710.80 = 253,589,742.45 : x
  2. Step 2: Convert to fraction form
    745,039,807.20/1,117,559,710.80 = 253,589,742.45/x
  3. Step 3: Cross multiply
    745,039,807.20x = 1,117,559,710.80 × 253,589,742.45
  4. Step 4: Simplify right side
    745,039,807.20x = 283,401,679,234,268,448
  5. Step 5: Solve for x
    x = 283,401,679,234,268,448/745,039,807.20
  6. Step 6: Final answer
    x = 380,384,613.68

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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.