Home / 1,620,489,561.55-2,236,246,444.52-915,626,409.37

Finding the Fourth Proportional to 1,620,489,561.55, 2,236,246,444.52 and 915,626,409.37

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Solution

The fourth proportional to 1,620,489,561.55, 2,236,246,444.52 and 915,626,409.37 is: 1,263,547,974.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,489,561.55 : 2,236,246,444.52 = 915,626,409.37 : x
  2. Step 2: Convert to fraction form
    1,620,489,561.55/2,236,246,444.52 = 915,626,409.37/x
  3. Step 3: Cross multiply
    1,620,489,561.55x = 2,236,246,444.52 × 915,626,409.37
  4. Step 4: Simplify right side
    1,620,489,561.55x = 2,047,566,302,446,516,992
  5. Step 5: Solve for x
    x = 2,047,566,302,446,516,992/1,620,489,561.55
  6. Step 6: Final answer
    x = 1,263,547,974.04

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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.