Home / 896,990,665.90-1,345,485,998.85-655,125,961.90

Finding the Fourth Proportional to 896,990,665.90, 1,345,485,998.85 and 655,125,961.90

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Solution

The fourth proportional to 896,990,665.90, 1,345,485,998.85 and 655,125,961.90 is: 982,688,942.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,990,665.90 : 1,345,485,998.85 = 655,125,961.90 : x
  2. Step 2: Convert to fraction form
    896,990,665.90/1,345,485,998.85 = 655,125,961.90/x
  3. Step 3: Cross multiply
    896,990,665.90x = 1,345,485,998.85 × 655,125,961.90
  4. Step 4: Simplify right side
    896,990,665.90x = 881,462,809,219,588,480
  5. Step 5: Solve for x
    x = 881,462,809,219,588,480/896,990,665.90
  6. Step 6: Final answer
    x = 982,688,942.85

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1.5x scale

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.