Home / 118,290,343.72-177,474,935.40-74,520,570.79

Finding the Fourth Proportional to 118,290,343.72, 177,474,935.40 and 74,520,570.79

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Solution

The fourth proportional to 118,290,343.72, 177,474,935.40 and 74,520,570.79 is: 111,805,689.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,290,343.72 : 177,474,935.40 = 74,520,570.79 : x
  2. Step 2: Convert to fraction form
    118,290,343.72/177,474,935.40 = 74,520,570.79/x
  3. Step 3: Cross multiply
    118,290,343.72x = 177,474,935.40 × 74,520,570.79
  4. Step 4: Simplify right side
    118,290,343.72x = 13,225,533,486,482,690
  5. Step 5: Solve for x
    x = 13,225,533,486,482,690/118,290,343.72
  6. Step 6: Final answer
    x = 111,805,689.89

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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.