Home / 156,988,197.39-216,639,889.02-86,423,234.07

Finding the Fourth Proportional to 156,988,197.39, 216,639,889.02 and 86,423,234.07

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Solution

The fourth proportional to 156,988,197.39, 216,639,889.02 and 86,423,234.07 is: 119,261,958.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,988,197.39 : 216,639,889.02 = 86,423,234.07 : x
  2. Step 2: Convert to fraction form
    156,988,197.39/216,639,889.02 = 86,423,234.07/x
  3. Step 3: Cross multiply
    156,988,197.39x = 216,639,889.02 × 86,423,234.07
  4. Step 4: Simplify right side
    156,988,197.39x = 18,722,719,837,674,284
  5. Step 5: Solve for x
    x = 18,722,719,837,674,284/156,988,197.39
  6. Step 6: Final answer
    x = 119,261,958.22

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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.