Home / 389,788,742.79-584,756,854.97-156,637,604.61

Finding the Fourth Proportional to 389,788,742.79, 584,756,854.97 and 156,637,604.61

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Solution

The fourth proportional to 389,788,742.79, 584,756,854.97 and 156,637,604.61 is: 234,986,039.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,788,742.79 : 584,756,854.97 = 156,637,604.61 : x
  2. Step 2: Convert to fraction form
    389,788,742.79/584,756,854.97 = 156,637,604.61/x
  3. Step 3: Cross multiply
    389,788,742.79x = 584,756,854.97 × 156,637,604.61
  4. Step 4: Simplify right side
    389,788,742.79x = 91,594,913,040,994,800
  5. Step 5: Solve for x
    x = 91,594,913,040,994,800/389,788,742.79
  6. Step 6: Final answer
    x = 234,986,039.84

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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.