Home / 2,119,915,869.84-3,178,401,256.53-938,852,758.40

Finding the Fourth Proportional to 2,119,915,869.84, 3,178,401,256.53 and 938,852,758.40

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Solution

The fourth proportional to 2,119,915,869.84, 3,178,401,256.53 and 938,852,758.40 is: 1,407,626,986.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119,915,869.84 : 3,178,401,256.53 = 938,852,758.40 : x
  2. Step 2: Convert to fraction form
    2,119,915,869.84/3,178,401,256.53 = 938,852,758.40/x
  3. Step 3: Cross multiply
    2,119,915,869.84x = 3,178,401,256.53 × 938,852,758.40
  4. Step 4: Simplify right side
    2,119,915,869.84x = 2,984,050,786,979,324,416
  5. Step 5: Solve for x
    x = 2,984,050,786,979,324,416/2,119,915,869.84
  6. Step 6: Final answer
    x = 1,407,626,986.26

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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.