Home / 210,806,183,031.40-290,912,532,583.35-120,585,636,655.53

Finding the Fourth Proportional to 210,806,183,031.40, 290,912,532,583.35 and 120,585,636,655.53

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Solution

The fourth proportional to 210,806,183,031.40, 290,912,532,583.35 and 120,585,636,655.53 is: 166,408,178,584.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,806,183,031.40 : 290,912,532,583.35 = 120,585,636,655.53 : x
  2. Step 2: Convert to fraction form
    210,806,183,031.40/290,912,532,583.35 = 120,585,636,655.53/x
  3. Step 3: Cross multiply
    210,806,183,031.40x = 290,912,532,583.35 × 120,585,636,655.53
  4. Step 4: Simplify right side
    210,806,183,031.40x = 35,079,872,952,635,869,888,512
  5. Step 5: Solve for x
    x = 35,079,872,952,635,869,888,512/210,806,183,031.40
  6. Step 6: Final answer
    x = 166,408,178,584.64

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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.