Home / 1,443,513,366.32-1,991,820,906.36-840,783,185.20

Finding the Fourth Proportional to 1,443,513,366.32, 1,991,820,906.36 and 840,783,185.20

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Solution

The fourth proportional to 1,443,513,366.32, 1,991,820,906.36 and 840,783,185.20 is: 1,160,148,264.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,513,366.32 : 1,991,820,906.36 = 840,783,185.20 : x
  2. Step 2: Convert to fraction form
    1,443,513,366.32/1,991,820,906.36 = 840,783,185.20/x
  3. Step 3: Cross multiply
    1,443,513,366.32x = 1,991,820,906.36 × 840,783,185.20
  4. Step 4: Simplify right side
    1,443,513,366.32x = 1,674,689,525,997,311,744
  5. Step 5: Solve for x
    x = 1,674,689,525,997,311,744/1,443,513,366.32
  6. Step 6: Final answer
    x = 1,160,148,264.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.