Home / 1,121,812,705.17-1,682,639,341.61-345,377,404.17

Finding the Fourth Proportional to 1,121,812,705.17, 1,682,639,341.61 and 345,377,404.17

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Solution

The fourth proportional to 1,121,812,705.17, 1,682,639,341.61 and 345,377,404.17 is: 518,041,563.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,812,705.17 : 1,682,639,341.61 = 345,377,404.17 : x
  2. Step 2: Convert to fraction form
    1,121,812,705.17/1,682,639,341.61 = 345,377,404.17/x
  3. Step 3: Cross multiply
    1,121,812,705.17x = 1,682,639,341.61 × 345,377,404.17
  4. Step 4: Simplify right side
    1,121,812,705.17x = 581,145,607,957,852,800
  5. Step 5: Solve for x
    x = 581,145,607,957,852,800/1,121,812,705.17
  6. Step 6: Final answer
    x = 518,041,563.69

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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.