Home / 6,458,630.68-9,689,312.85-1,909,320.76

Finding the Fourth Proportional to 6,458,630.68, 9,689,312.85 and 1,909,320.76

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Solution

The fourth proportional to 6,458,630.68, 9,689,312.85 and 1,909,320.76 is: 2,864,385.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,458,630.68 : 9,689,312.85 = 1,909,320.76 : x
  2. Step 2: Convert to fraction form
    6,458,630.68/9,689,312.85 = 1,909,320.76/x
  3. Step 3: Cross multiply
    6,458,630.68x = 9,689,312.85 × 1,909,320.76
  4. Step 4: Simplify right side
    6,458,630.68x = 18,500,006,174,639.77
  5. Step 5: Solve for x
    x = 18,500,006,174,639.77/6,458,630.68
  6. Step 6: Final answer
    x = 2,864,385.21

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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.