Home / 79,683,539.90-119,525,309.85-72,881,095.10

Finding the Fourth Proportional to 79,683,539.90, 119,525,309.85 and 72,881,095.10

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Solution

The fourth proportional to 79,683,539.90, 119,525,309.85 and 72,881,095.10 is: 109,321,642.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,683,539.90 : 119,525,309.85 = 72,881,095.10 : x
  2. Step 2: Convert to fraction form
    79,683,539.90/119,525,309.85 = 72,881,095.10/x
  3. Step 3: Cross multiply
    79,683,539.90x = 119,525,309.85 × 72,881,095.10
  4. Step 4: Simplify right side
    79,683,539.90x = 8,711,135,474,034,816
  5. Step 5: Solve for x
    x = 8,711,135,474,034,816/79,683,539.90
  6. Step 6: Final answer
    x = 109,321,642.65

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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.