Home / 208,632,094.47-287,897,888.22-115,805,295

Finding the Fourth Proportional to 208,632,094.47, 287,897,888.22 and 115,805,295

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Solution

The fourth proportional to 208,632,094.47, 287,897,888.22 and 115,805,295 is: 159,803,312.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,632,094.47 : 287,897,888.22 = 115,805,295 : x
  2. Step 2: Convert to fraction form
    208,632,094.47/287,897,888.22 = 115,805,295/x
  3. Step 3: Cross multiply
    208,632,094.47x = 287,897,888.22 × 115,805,295
  4. Step 4: Simplify right side
    208,632,094.47x = 33,340,099,874,759,856
  5. Step 5: Solve for x
    x = 33,340,099,874,759,856/208,632,094.47
  6. Step 6: Final answer
    x = 159,803,312.91

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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.