Home / 812,019,367.84-1,120,556,705.04-440,733,485.92

Finding the Fourth Proportional to 812,019,367.84, 1,120,556,705.04 and 440,733,485.92

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Solution

The fourth proportional to 812,019,367.84, 1,120,556,705.04 and 440,733,485.92 is: 608,195,915.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,019,367.84 : 1,120,556,705.04 = 440,733,485.92 : x
  2. Step 2: Convert to fraction form
    812,019,367.84/1,120,556,705.04 = 440,733,485.92/x
  3. Step 3: Cross multiply
    812,019,367.84x = 1,120,556,705.04 × 440,733,485.92
  4. Step 4: Simplify right side
    812,019,367.84x = 493,866,862,783,308,416
  5. Step 5: Solve for x
    x = 493,866,862,783,308,416/812,019,367.84
  6. Step 6: Final answer
    x = 608,195,915.45

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1.5x scale

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.