Home / 1,123,532,804.80-1,550,477,821.48-621,778,098.88

Finding the Fourth Proportional to 1,123,532,804.80, 1,550,477,821.48 and 621,778,098.88

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Solution

The fourth proportional to 1,123,532,804.80, 1,550,477,821.48 and 621,778,098.88 is: 858,055,188.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,532,804.80 : 1,550,477,821.48 = 621,778,098.88 : x
  2. Step 2: Convert to fraction form
    1,123,532,804.80/1,550,477,821.48 = 621,778,098.88/x
  3. Step 3: Cross multiply
    1,123,532,804.80x = 1,550,477,821.48 × 621,778,098.88
  4. Step 4: Simplify right side
    1,123,532,804.80x = 964,053,152,195,438,464
  5. Step 5: Solve for x
    x = 964,053,152,195,438,464/1,123,532,804.80
  6. Step 6: Final answer
    x = 858,055,188.13

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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.