Home / 1,296,847,068.84-1,789,615,782-724,634,702.64

Finding the Fourth Proportional to 1,296,847,068.84, 1,789,615,782 and 724,634,702.64

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Solution

The fourth proportional to 1,296,847,068.84, 1,789,615,782 and 724,634,702.64 is: 999,977,353.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,847,068.84 : 1,789,615,782 = 724,634,702.64 : x
  2. Step 2: Convert to fraction form
    1,296,847,068.84/1,789,615,782 = 724,634,702.64/x
  3. Step 3: Cross multiply
    1,296,847,068.84x = 1,789,615,782 × 724,634,702.64
  4. Step 4: Simplify right side
    1,296,847,068.84x = 1,296,817,700,029,421,056
  5. Step 5: Solve for x
    x = 1,296,817,700,029,421,056/1,296,847,068.84
  6. Step 6: Final answer
    x = 999,977,353.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.