Home / 210,806,183,004.29-290,912,532,545.95-120,585,636,628.41

Finding the Fourth Proportional to 210,806,183,004.29, 290,912,532,545.95 and 120,585,636,628.41

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Solution

The fourth proportional to 210,806,183,004.29, 290,912,532,545.95 and 120,585,636,628.41 is: 166,408,178,547.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,806,183,004.29 : 290,912,532,545.95 = 120,585,636,628.41 : x
  2. Step 2: Convert to fraction form
    210,806,183,004.29/290,912,532,545.95 = 120,585,636,628.41/x
  3. Step 3: Cross multiply
    210,806,183,004.29x = 290,912,532,545.95 × 120,585,636,628.41
  4. Step 4: Simplify right side
    210,806,183,004.29x = 35,079,872,940,236,425,134,080
  5. Step 5: Solve for x
    x = 35,079,872,940,236,425,134,080/210,806,183,004.29
  6. Step 6: Final answer
    x = 166,408,178,547.22

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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.