Home / 1,157,674,318.12-1,736,687,836.86-720,621,438.76

Finding the Fourth Proportional to 1,157,674,318.12, 1,736,687,836.86 and 720,621,438.76

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Solution

The fourth proportional to 1,157,674,318.12, 1,736,687,836.86 and 720,621,438.76 is: 1,081,041,937.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157,674,318.12 : 1,736,687,836.86 = 720,621,438.76 : x
  2. Step 2: Convert to fraction form
    1,157,674,318.12/1,736,687,836.86 = 720,621,438.76/x
  3. Step 3: Cross multiply
    1,157,674,318.12x = 1,736,687,836.86 × 720,621,438.76
  4. Step 4: Simplify right side
    1,157,674,318.12x = 1,251,494,487,675,045,376
  5. Step 5: Solve for x
    x = 1,251,494,487,675,045,376/1,157,674,318.12
  6. Step 6: Final answer
    x = 1,081,041,937.35

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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.