Home / 210,159,220.66-314,965,360.27-85,516,561.65

Finding the Fourth Proportional to 210,159,220.66, 314,965,360.27 and 85,516,561.65

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Solution

The fourth proportional to 210,159,220.66, 314,965,360.27 and 85,516,561.65 is: 128,163,563.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,159,220.66 : 314,965,360.27 = 85,516,561.65 : x
  2. Step 2: Convert to fraction form
    210,159,220.66/314,965,360.27 = 85,516,561.65/x
  3. Step 3: Cross multiply
    210,159,220.66x = 314,965,360.27 × 85,516,561.65
  4. Step 4: Simplify right side
    210,159,220.66x = 26,934,754,649,143,916
  5. Step 5: Solve for x
    x = 26,934,754,649,143,916/210,159,220.66
  6. Step 6: Final answer
    x = 128,163,563.63

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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.