Home / 1,287,767,984.40-1,932,289,705.80-735,494,497.20

Finding the Fourth Proportional to 1,287,767,984.40, 1,932,289,705.80 and 735,494,497.20

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Solution

The fourth proportional to 1,287,767,984.40, 1,932,289,705.80 and 735,494,497.20 is: 1,103,605,977.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,767,984.40 : 1,932,289,705.80 = 735,494,497.20 : x
  2. Step 2: Convert to fraction form
    1,287,767,984.40/1,932,289,705.80 = 735,494,497.20/x
  3. Step 3: Cross multiply
    1,287,767,984.40x = 1,932,289,705.80 × 735,494,497.20
  4. Step 4: Simplify right side
    1,287,767,984.40x = 1,421,188,445,612,107,008
  5. Step 5: Solve for x
    x = 1,421,188,445,612,107,008/1,287,767,984.40
  6. Step 6: Final answer
    x = 1,103,605,977.81

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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.