Home / 28,621,961,752.12-42,952,553,793.18-9,989,457,604.84

Finding the Fourth Proportional to 28,621,961,752.12, 42,952,553,793.18 and 9,989,457,604.84

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Solution

The fourth proportional to 28,621,961,752.12, 42,952,553,793.18 and 9,989,457,604.84 is: 14,991,030,973.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,621,961,752.12 : 42,952,553,793.18 = 9,989,457,604.84 : x
  2. Step 2: Convert to fraction form
    28,621,961,752.12/42,952,553,793.18 = 9,989,457,604.84/x
  3. Step 3: Cross multiply
    28,621,961,752.12x = 42,952,553,793.18 × 9,989,457,604.84
  4. Step 4: Simplify right side
    28,621,961,752.12x = 429,072,715,136,581,173,248
  5. Step 5: Solve for x
    x = 429,072,715,136,581,173,248/28,621,961,752.12
  6. Step 6: Final answer
    x = 14,991,030,973.09

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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.