Home / 193,775,172.66-290,590,325.55-78,720,951.78

Finding the Fourth Proportional to 193,775,172.66, 290,590,325.55 and 78,720,951.78

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Solution

The fourth proportional to 193,775,172.66, 290,590,325.55 and 78,720,951.78 is: 118,052,001.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,775,172.66 : 290,590,325.55 = 78,720,951.78 : x
  2. Step 2: Convert to fraction form
    193,775,172.66/290,590,325.55 = 78,720,951.78/x
  3. Step 3: Cross multiply
    193,775,172.66x = 290,590,325.55 × 78,720,951.78
  4. Step 4: Simplify right side
    193,775,172.66x = 22,875,547,005,356,052
  5. Step 5: Solve for x
    x = 22,875,547,005,356,052/193,775,172.66
  6. Step 6: Final answer
    x = 118,052,001.66

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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.