Home / 86,208,099.20-129,312,148.80-82,806,876.80

Finding the Fourth Proportional to 86,208,099.20, 129,312,148.80 and 82,806,876.80

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Solution

The fourth proportional to 86,208,099.20, 129,312,148.80 and 82,806,876.80 is: 124,210,315.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,208,099.20 : 129,312,148.80 = 82,806,876.80 : x
  2. Step 2: Convert to fraction form
    86,208,099.20/129,312,148.80 = 82,806,876.80/x
  3. Step 3: Cross multiply
    86,208,099.20x = 129,312,148.80 × 82,806,876.80
  4. Step 4: Simplify right side
    86,208,099.20x = 10,707,935,174,424,868
  5. Step 5: Solve for x
    x = 10,707,935,174,424,868/86,208,099.20
  6. Step 6: Final answer
    x = 124,210,315.20

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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.