Home / 210,806,183,023.39-290,912,532,572.31-120,585,636,647.51

Finding the Fourth Proportional to 210,806,183,023.39, 290,912,532,572.31 and 120,585,636,647.51

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Solution

The fourth proportional to 210,806,183,023.39, 290,912,532,572.31 and 120,585,636,647.51 is: 166,408,178,573.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,806,183,023.39 : 290,912,532,572.31 = 120,585,636,647.51 : x
  2. Step 2: Convert to fraction form
    210,806,183,023.39/290,912,532,572.31 = 120,585,636,647.51/x
  3. Step 3: Cross multiply
    210,806,183,023.39x = 290,912,532,572.31 × 120,585,636,647.51
  4. Step 4: Simplify right side
    210,806,183,023.39x = 35,079,872,948,971,491,033,088
  5. Step 5: Solve for x
    x = 35,079,872,948,971,491,033,088/210,806,183,023.39
  6. Step 6: Final answer
    x = 166,408,178,573.58

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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.