Home / 30,328,477.40-45,492,716.10-18,849,351.80

Finding the Fourth Proportional to 30,328,477.40, 45,492,716.10 and 18,849,351.80

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Solution

The fourth proportional to 30,328,477.40, 45,492,716.10 and 18,849,351.80 is: 28,274,027.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,328,477.40 : 45,492,716.10 = 18,849,351.80 : x
  2. Step 2: Convert to fraction form
    30,328,477.40/45,492,716.10 = 18,849,351.80/x
  3. Step 3: Cross multiply
    30,328,477.40x = 45,492,716.10 × 18,849,351.80
  4. Step 4: Simplify right side
    30,328,477.40x = 857,508,210,106,424
  5. Step 5: Solve for x
    x = 857,508,210,106,424/30,328,477.40
  6. Step 6: Final answer
    x = 28,274,027.70

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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.