Home / 1,123,632,006.80-1,685,448,010.20-919,390,701.20

Finding the Fourth Proportional to 1,123,632,006.80, 1,685,448,010.20 and 919,390,701.20

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Solution

The fourth proportional to 1,123,632,006.80, 1,685,448,010.20 and 919,390,701.20 is: 1,379,086,051.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,632,006.80 : 1,685,448,010.20 = 919,390,701.20 : x
  2. Step 2: Convert to fraction form
    1,123,632,006.80/1,685,448,010.20 = 919,390,701.20/x
  3. Step 3: Cross multiply
    1,123,632,006.80x = 1,685,448,010.20 × 919,390,701.20
  4. Step 4: Simplify right side
    1,123,632,006.80x = 1,549,585,227,933,922,816
  5. Step 5: Solve for x
    x = 1,549,585,227,933,922,816/1,123,632,006.80
  6. Step 6: Final answer
    x = 1,379,086,051.80

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1.5x scale

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.