Home / 87,148,455.57-130,600,336.64-68,872,306.77

Finding the Fourth Proportional to 87,148,455.57, 130,600,336.64 and 68,872,306.77

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Solution

The fourth proportional to 87,148,455.57, 130,600,336.64 and 68,872,306.77 is: 103,211,771.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,148,455.57 : 130,600,336.64 = 68,872,306.77 : x
  2. Step 2: Convert to fraction form
    87,148,455.57/130,600,336.64 = 68,872,306.77/x
  3. Step 3: Cross multiply
    87,148,455.57x = 130,600,336.64 × 68,872,306.77
  4. Step 4: Simplify right side
    87,148,455.57x = 8,994,746,448,990,989
  5. Step 5: Solve for x
    x = 8,994,746,448,990,989/87,148,455.57
  6. Step 6: Final answer
    x = 103,211,771.11

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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.