Home / 860,683,939.35-1,290,577,389.35-307,773,221.91

Finding the Fourth Proportional to 860,683,939.35, 1,290,577,389.35 and 307,773,221.91

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Solution

The fourth proportional to 860,683,939.35, 1,290,577,389.35 and 307,773,221.91 is: 461,499,446.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,683,939.35 : 1,290,577,389.35 = 307,773,221.91 : x
  2. Step 2: Convert to fraction form
    860,683,939.35/1,290,577,389.35 = 307,773,221.91/x
  3. Step 3: Cross multiply
    860,683,939.35x = 1,290,577,389.35 × 307,773,221.91
  4. Step 4: Simplify right side
    860,683,939.35x = 397,205,161,242,907,200
  5. Step 5: Solve for x
    x = 397,205,161,242,907,200/860,683,939.35
  6. Step 6: Final answer
    x = 461,499,446.06

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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.