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Finding the Fourth Proportional to 1,267,502,764.80, 1,898,703,230.40 and 879,763,411.20

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Solution

The fourth proportional to 1,267,502,764.80, 1,898,703,230.40 and 879,763,411.20 is: 1,317,874,546.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,502,764.80 : 1,898,703,230.40 = 879,763,411.20 : x
  2. Step 2: Convert to fraction form
    1,267,502,764.80/1,898,703,230.40 = 879,763,411.20/x
  3. Step 3: Cross multiply
    1,267,502,764.80x = 1,898,703,230.40 × 879,763,411.20
  4. Step 4: Simplify right side
    1,267,502,764.80x = 1,670,409,630,833,163,776
  5. Step 5: Solve for x
    x = 1,670,409,630,833,163,776/1,267,502,764.80
  6. Step 6: Final answer
    x = 1,317,874,546.09

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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.