Home / 131,908,021.48-197,862,038.37-90,367,935.71

Finding the Fourth Proportional to 131,908,021.48, 197,862,038.37 and 90,367,935.71

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Solution

The fourth proportional to 131,908,021.48, 197,862,038.37 and 90,367,935.71 is: 135,551,907.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,908,021.48 : 197,862,038.37 = 90,367,935.71 : x
  2. Step 2: Convert to fraction form
    131,908,021.48/197,862,038.37 = 90,367,935.71/x
  3. Step 3: Cross multiply
    131,908,021.48x = 197,862,038.37 × 90,367,935.71
  4. Step 4: Simplify right side
    131,908,021.48x = 17,880,383,963,364,370
  5. Step 5: Solve for x
    x = 17,880,383,963,364,370/131,908,021.48
  6. Step 6: Final answer
    x = 135,551,907.78

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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.