Home / 210,806,183,018.84-290,912,532,565.98-120,585,636,642.96

Finding the Fourth Proportional to 210,806,183,018.84, 290,912,532,565.98 and 120,585,636,642.96

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Solution

The fourth proportional to 210,806,183,018.84, 290,912,532,565.98 and 120,585,636,642.96 is: 166,408,178,567.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,806,183,018.84 : 290,912,532,565.98 = 120,585,636,642.96 : x
  2. Step 2: Convert to fraction form
    210,806,183,018.84/290,912,532,565.98 = 120,585,636,642.96/x
  3. Step 3: Cross multiply
    210,806,183,018.84x = 290,912,532,565.98 × 120,585,636,642.96
  4. Step 4: Simplify right side
    210,806,183,018.84x = 35,079,872,946,884,531,191,808
  5. Step 5: Solve for x
    x = 35,079,872,946,884,531,191,808/210,806,183,018.84
  6. Step 6: Final answer
    x = 166,408,178,567.27

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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.