Home / 1,443,513,342.32-1,991,820,873.30-840,783,161.18

Finding the Fourth Proportional to 1,443,513,342.32, 1,991,820,873.30 and 840,783,161.18

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Solution

The fourth proportional to 1,443,513,342.32, 1,991,820,873.30 and 840,783,161.18 is: 1,160,148,230.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,513,342.32 : 1,991,820,873.30 = 840,783,161.18 : x
  2. Step 2: Convert to fraction form
    1,443,513,342.32/1,991,820,873.30 = 840,783,161.18/x
  3. Step 3: Cross multiply
    1,443,513,342.32x = 1,991,820,873.30 × 840,783,161.18
  4. Step 4: Simplify right side
    1,443,513,342.32x = 1,674,689,450,357,482,240
  5. Step 5: Solve for x
    x = 1,674,689,450,357,482,240/1,443,513,342.32
  6. Step 6: Final answer
    x = 1,160,148,230.89

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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.