Home / 1,919,117,437.88-2,878,676,156.81-465,094,861.88

Finding the Fourth Proportional to 1,919,117,437.88, 2,878,676,156.81 and 465,094,861.88

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Solution

The fourth proportional to 1,919,117,437.88, 2,878,676,156.81 and 465,094,861.88 is: 697,642,292.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,117,437.88 : 2,878,676,156.81 = 465,094,861.88 : x
  2. Step 2: Convert to fraction form
    1,919,117,437.88/2,878,676,156.81 = 465,094,861.88/x
  3. Step 3: Cross multiply
    1,919,117,437.88x = 2,878,676,156.81 × 465,094,861.88
  4. Step 4: Simplify right side
    1,919,117,437.88x = 1,338,857,489,535,565,568
  5. Step 5: Solve for x
    x = 1,338,857,489,535,565,568/1,919,117,437.88
  6. Step 6: Final answer
    x = 697,642,292.81

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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.