Home / 209,718,446.93-289,413,726.27-115,632,775.94

Finding the Fourth Proportional to 209,718,446.93, 289,413,726.27 and 115,632,775.94

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Solution

The fourth proportional to 209,718,446.93, 289,413,726.27 and 115,632,775.94 is: 159,574,482.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,718,446.93 : 289,413,726.27 = 115,632,775.94 : x
  2. Step 2: Convert to fraction form
    209,718,446.93/289,413,726.27 = 115,632,775.94/x
  3. Step 3: Cross multiply
    209,718,446.93x = 289,413,726.27 × 115,632,775.94
  4. Step 4: Simplify right side
    209,718,446.93x = 33,465,712,561,859,872
  5. Step 5: Solve for x
    x = 33,465,712,561,859,872/209,718,446.93
  6. Step 6: Final answer
    x = 159,574,482.13

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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.