Home / 290,570,660.16-435,857,561.28-86,100,506.88

Finding the Fourth Proportional to 290,570,660.16, 435,857,561.28 and 86,100,506.88

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Solution

The fourth proportional to 290,570,660.16, 435,857,561.28 and 86,100,506.88 is: 129,151,225.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,570,660.16 : 435,857,561.28 = 86,100,506.88 : x
  2. Step 2: Convert to fraction form
    290,570,660.16/435,857,561.28 = 86,100,506.88/x
  3. Step 3: Cross multiply
    290,570,660.16x = 435,857,561.28 × 86,100,506.88
  4. Step 4: Simplify right side
    290,570,660.16x = 37,527,556,953,688,656
  5. Step 5: Solve for x
    x = 37,527,556,953,688,656/290,570,660.16
  6. Step 6: Final answer
    x = 129,151,225.84

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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.