Home / 1,379,285,405.30-2,069,935,877.55-971,138,717.30

Finding the Fourth Proportional to 1,379,285,405.30, 2,069,935,877.55 and 971,138,717.30

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Solution

The fourth proportional to 1,379,285,405.30, 2,069,935,877.55 and 971,138,717.30 is: 1,457,417,634.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,285,405.30 : 2,069,935,877.55 = 971,138,717.30 : x
  2. Step 2: Convert to fraction form
    1,379,285,405.30/2,069,935,877.55 = 971,138,717.30/x
  3. Step 3: Cross multiply
    1,379,285,405.30x = 2,069,935,877.55 × 971,138,717.30
  4. Step 4: Simplify right side
    1,379,285,405.30x = 2,010,194,873,017,156,608
  5. Step 5: Solve for x
    x = 2,010,194,873,017,156,608/1,379,285,405.30
  6. Step 6: Final answer
    x = 1,457,417,634.74

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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.