Home / 1,192,312,309.50-1,788,662,736.81-352,039,991.40

Finding the Fourth Proportional to 1,192,312,309.50, 1,788,662,736.81 and 352,039,991.40

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Solution

The fourth proportional to 1,192,312,309.50, 1,788,662,736.81 and 352,039,991.40 is: 528,117,347.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,312,309.50 : 1,788,662,736.81 = 352,039,991.40 : x
  2. Step 2: Convert to fraction form
    1,192,312,309.50/1,788,662,736.81 = 352,039,991.40/x
  3. Step 3: Cross multiply
    1,192,312,309.50x = 1,788,662,736.81 × 352,039,991.40
  4. Step 4: Simplify right side
    1,192,312,309.50x = 629,680,814,484,092,800
  5. Step 5: Solve for x
    x = 629,680,814,484,092,800/1,192,312,309.50
  6. Step 6: Final answer
    x = 528,117,347.67

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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.