Home / 212,832,699.89-319,095,831.51-130,782,056.90

Finding the Fourth Proportional to 212,832,699.89, 319,095,831.51 and 130,782,056.90

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Solution

The fourth proportional to 212,832,699.89, 319,095,831.51 and 130,782,056.90 is: 196,078,935.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,832,699.89 : 319,095,831.51 = 130,782,056.90 : x
  2. Step 2: Convert to fraction form
    212,832,699.89/319,095,831.51 = 130,782,056.90/x
  3. Step 3: Cross multiply
    212,832,699.89x = 319,095,831.51 × 130,782,056.90
  4. Step 4: Simplify right side
    212,832,699.89x = 41,732,009,191,498,152
  5. Step 5: Solve for x
    x = 41,732,009,191,498,152/212,832,699.89
  6. Step 6: Final answer
    x = 196,078,935.30

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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.