Home / 28,088,572,994.20-42,132,775,506.18-7,126,965,314.20

Finding the Fourth Proportional to 28,088,572,994.20, 42,132,775,506.18 and 7,126,965,314.20

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Solution

The fourth proportional to 28,088,572,994.20, 42,132,775,506.18 and 7,126,965,314.20 is: 10,690,426,661.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,088,572,994.20 : 42,132,775,506.18 = 7,126,965,314.20 : x
  2. Step 2: Convert to fraction form
    28,088,572,994.20/42,132,775,506.18 = 7,126,965,314.20/x
  3. Step 3: Cross multiply
    28,088,572,994.20x = 42,132,775,506.18 × 7,126,965,314.20
  4. Step 4: Simplify right side
    28,088,572,994.20x = 300,278,829,623,520,198,656
  5. Step 5: Solve for x
    x = 300,278,829,623,520,198,656/28,088,572,994.20
  6. Step 6: Final answer
    x = 10,690,426,661.60

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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.