Home / 208,602,821.80-312,904,232.70-55,272,543.40

Finding the Fourth Proportional to 208,602,821.80, 312,904,232.70 and 55,272,543.40

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Solution

The fourth proportional to 208,602,821.80, 312,904,232.70 and 55,272,543.40 is: 82,908,815.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,602,821.80 : 312,904,232.70 = 55,272,543.40 : x
  2. Step 2: Convert to fraction form
    208,602,821.80/312,904,232.70 = 55,272,543.40/x
  3. Step 3: Cross multiply
    208,602,821.80x = 312,904,232.70 × 55,272,543.40
  4. Step 4: Simplify right side
    208,602,821.80x = 17,295,012,781,954,448
  5. Step 5: Solve for x
    x = 17,295,012,781,954,448/208,602,821.80
  6. Step 6: Final answer
    x = 82,908,815.10

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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.