Home / 30,143,845,000.80-45,215,767,501.20-12,451,642,669.80

Finding the Fourth Proportional to 30,143,845,000.80, 45,215,767,501.20 and 12,451,642,669.80

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Solution

The fourth proportional to 30,143,845,000.80, 45,215,767,501.20 and 12,451,642,669.80 is: 18,677,464,004.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,143,845,000.80 : 45,215,767,501.20 = 12,451,642,669.80 : x
  2. Step 2: Convert to fraction form
    30,143,845,000.80/45,215,767,501.20 = 12,451,642,669.80/x
  3. Step 3: Cross multiply
    30,143,845,000.80x = 45,215,767,501.20 × 12,451,642,669.80
  4. Step 4: Simplify right side
    30,143,845,000.80x = 563,010,579,965,697,982,464
  5. Step 5: Solve for x
    x = 563,010,579,965,697,982,464/30,143,845,000.80
  6. Step 6: Final answer
    x = 18,677,464,004.70

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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.