Home / 148,626,932.40-205,103,953.98-81,647,011.80

Finding the Fourth Proportional to 148,626,932.40, 205,103,953.98 and 81,647,011.80

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Solution

The fourth proportional to 148,626,932.40, 205,103,953.98 and 81,647,011.80 is: 112,672,210.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,626,932.40 : 205,103,953.98 = 81,647,011.80 : x
  2. Step 2: Convert to fraction form
    148,626,932.40/205,103,953.98 = 81,647,011.80/x
  3. Step 3: Cross multiply
    148,626,932.40x = 205,103,953.98 × 81,647,011.80
  4. Step 4: Simplify right side
    148,626,932.40x = 16,746,124,950,831,716
  5. Step 5: Solve for x
    x = 16,746,124,950,831,716/148,626,932.40
  6. Step 6: Final answer
    x = 112,672,210.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.